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{{Short description|Species of mammal in the family Elephantidae}}
{{Short description|Second-largest species of elephant}}
 
{{Good article}}
{{Pp-vandalism|small=yes}}
{{Use British English|date=June 2018}}
{{Use British English|date=June 2018}}
{{Use dmy dates|date=February 2020}}
{{Use dmy dates|date=February 2020}}
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| fossil_range = {{fossilrange|Pleistocene|Recent}}
| fossil_range = {{fossilrange|Pleistocene|Recent}}
| image = Elephas maximus (Bandipur).jpg
| image = Elephas maximus (Bandipur).jpg
| image_caption = A tusked bull<br>[[Bandipur National Park]], [[Karnataka]], India
| image_caption = A tusked bull<br />[[Bandipur National Park]], [[Karnataka]], India
| image2 = Sri Lankan elephant (Elephas maximus maximus) female and young 1.jpg
| image2 = Sri Lankan elephant (Elephas maximus maximus) female and young 1.jpg
| image2_caption = A cow and juveniles<br>[[Yala National Park]], [[Sri Lanka]]
| image2_caption = A cow, juveniles and a calf<br />[[Yala National Park]], [[Sri Lanka]]
| status = EN
| status = EN
| status_system = IUCN3.1
| status_system = IUCN3.1
| status_ref = <ref>{{cite iucn |title=''Elephas maximus'' |name-list-style=amp |author=Williams, C. |author2=Tiwari, S.K. |author3=Goswami, V.R. |author4=de Silva, S. |author5=Kumar, A. |author6=Baskaran, N. |author7=Yoganand, K. |author8=Menon, V. |date=2020 |page=e.T7140A45818198 |doi=10.2305/IUCN.UK.2020-3.RLTS.T7140A45818198.en |access-date=15 January 2022}}</ref>
| status_ref = <ref name="MSOF">{{cite iucn |title=''Elephas maximus'' |name-list-style=amp |author=Williams, C. |author2=Tiwari, S.K. |author3=Goswami, V.R. |author4=de Silva, S. |author5=Kumar, A. |author6=Baskaran, N. |author7=Yoganand, K. |author8=Menon, V. |date=2020 |article-number=e.T7140A45818198 |doi=10.2305/IUCN.UK.2020-3.RLTS.T7140A45818198.en |access-date=15 January 2022}}</ref>
| status2 = CITES_A1
| status2 = CITES_A1
| status2_system = CITES
| status2_system = CITES
| status2_ref = <ref name=CITES>{{cite web |title=Appendices |url=https://cites.org/eng/app/appendices.php |publisher=Convention on International Trade in Endangered Species of Wild Fauna and Flora ([[CITES]]) |access-date=6 June 2022}}</ref>
| status2_ref = <ref name=CITES>{{cite web |title=Appendices |url=https://CITES.org/eng/app/appendices.php |publisher=Convention on International Trade in Endangered Species of Wild Fauna and Flora ([[CITES]]) |access-date=6 June 2022 |archive-date=5 December 2017 |archive-url=https://web.archive.org/web/20171205014647/https://CITES.org/eng/app/appendices.php |url-status=live }}</ref>
| genus = Elephas
| genus = Elephas
| species = maximus<ref name=MSW>{{MSW3 Proboscidea |id=11500004 |page=90 |heading=Species ''Elephas maximus''}}</ref>
| species = maximus<ref name=MSW>{{MSW3 Proboscidea |id=11500004 |page=90 |heading=Species ''Elephas maximus''}}</ref>
| authority = [[Carl Linnaeus|Linnaeus]], [[10th edition of Systema Naturae|1758]]
| authority = [[Carl Linnaeus|Linnaeus]], [[10th edition of Systema Naturae|1758]]
| range_map = Elephas Maximus distribution evolution map.svg
| range_map = Elephas Maximus distribution evolution map.svg
| range_map_caption = Asian elephant historical range (pink) and current range (red)
| range_map_caption = {{leftlegend|#eea78f|&nbsp;Historical range}}
{{leftlegend|#ea4035|&nbsp;Range in early 21st century}}
| synonyms =  
| synonyms =  
| subdivision_ranks = Subspecies
| subdivision_ranks = Subspecies
| subdivision = *[[Sri Lankan elephant|''E. m. maximus'']]
| subdivision = *[[Sri Lankan elephant|''E. m. maximus'']]
*[[Indian elephant|''E. m. indicus'']]
* [[Indian elephant|''E. m. indicus'']]
*[[Sumatran elephant|''E. m. sumatranus'']]
* [[Sumatran elephant|''E. m. sumatranus'']]
*[[Borneo elephant|''E. m. borneensis'']]
| subdivision_ref = <ref name=MSW/>
| subdivision_ref = <ref name=MSW/>
}}
}}


The '''Asian elephant''' ('''''Elephas maximus'''''), also known as the '''Asiatic elephant''', is the only living [[species]] of the genus ''[[Elephas]]'' and is distributed throughout the [[Indian subcontinent]] and [[Southeast Asia]], from [[India]] in the west, [[Nepal]] in the north, [[Sumatra]] in the south, and to [[Borneo]] in the east. Three [[subspecies]] are recognised—''[[Sri Lankan elephant|E. m. maximus]]'' from [[Sri Lanka]], [[Indian elephant|''E. m. indicus'']] from mainland Asia and ''[[Sumatran elephant|E. m. sumatranus]]'' from the island of [[Sumatra]].<ref name=MSW/> Formerly, there was also the '''Syrian elephant''' or '''Western Asiatic elephant''' (''Elephas maximus asurus'') which was the westernmost population of the Asian elephant (''Elephas maximus''). This subspecies became [[extinct]] in ancient times.<ref name="iucn">{{cite iucn |title=''Elephas maximus'' |author=Choudhury, A. |author2=Lahiri Choudhury, D. K. |author3=Desai, A. |author4=Duckworth, J. W. |author5=Easa, P. S. |author6=Johnsingh, A. J. T. |author7=Fernando, P. |author8=Hedges, S. |author9=Gunawardena, M. |author10=Kurt, F.; Karanth, U; Lister, A.; Menon, V.; Riddle, H.; Rübel, A. & Wikramanayake, E. (IUCN SSC Asian Elephant Specialist Group) |page=e.T7140A12828813 |year=2008}}</ref> Skeletal remains of ''E. m. asurus'' have been recorded from the [[Middle East]]: [[Iran]], [[Iraq]], [[Syria]], and [[Turkey]] from periods dating between at least 1800 BC and likely 700 BC.<ref name=":0">{{Cite journal|last1=Çakırlar|first1=Canan|last2=Ikram|first2=Salima|date=2016-05-03|title='When elephants battle, the grass suffers.' Power, ivory and the Syrian elephant|journal=Levant|language=en|volume=48|issue=2|pages=167–183|doi=10.1080/00758914.2016.1198068|issn=0075-8914|doi-access=free}}</ref> It is one of only three living species of [[elephant]]s or [[Elephantidae|elephantids]] anywhere in the world, the others being the [[African bush elephant]] and [[African forest elephant]]. It is the second largest species of elephant after the African bush elephant.
The '''Asian elephant''' ('''''Elephas maximus'''''), also known as the '''Asiatic elephant''', is the only living species in the genus ''[[Elephas]]''. It is the largest living land animal in [[Asia]] and the second largest living [[Elephantidae|elephantid]] in the world. It is characterised by its long [[Elephant trunk|trunk]] with a single finger-like process; large [[tusk]]s in males; laterally folded large ears and wrinkled grey skin that is partly [[depigment]]ed on the trunk, ears or neck. Adult males average {{cvt|4|t|ST|lk=on}} in weight and females {{cvt|2.7|t|ST}}. It has a large and well developed [[neocortex]] of the brain, is highly intelligent and self-aware, being able to display behaviours associated with grief, learning and greeting. Three [[subspecies]] are recognised—''[[Sri Lankan elephant|E. m. maximus]]'', [[Indian elephant|''E. m. indicus'']] and ''[[Sumatran elephant|E. m. sumatranus]]''.


The Asian elephant is the largest living land animal in [[Asia]].<ref name="Shoshani82">{{cite journal |author=Shoshani, J. |author2=Eisenberg, J. F. |year=1982 |title=''Elephas maximus'' |journal=Mammalian Species |issue=182 |pages=1–8 |url=http://www.science.smith.edu/msi/pdf/i0076-3519-182-01-0001.pdf |jstor=3504045 |doi=10.2307/3504045 |archive-url=https://web.archive.org/web/20130430131057/http://www.science.smith.edu/msi/pdf/i0076-3519-182-01-0001.pdf |archive-date=30 April 2013 }}</ref> Since 1986, the Asian elephant has been listed as [[endangered species|Endangered]] on the [[IUCN Red List]], as the population has declined by at least 50 per cent over the last three elephant generations, which is about 60–75 years. It is primarily threatened by [[loss of habitat]], [[habitat degradation]], [[Habitat fragmentation|fragmentation]] and [[poaching]].<ref name="iucn" /> In 2019, the wild population was estimated at 48,323–51,680 individuals.<ref name="Menon 2019">{{cite journal |author= Menon, V. |author2= Tiwari, S. |year=2019|title=Population status of Asian elephants ''Elephas maximus'' and key threats|journal=International Zoo Yearbook | volume=53 |issue=1 |pages=17–30 |url=https://zslpublications.onlinelibrary.wiley.com/doi/abs/10.1111/izy.12247 |doi=10.1111/izy.12247 |s2cid= 209571148 }}</ref>  Female captive elephants have lived beyond 60 years when kept in semi-natural surroundings, such as forest camps. In zoos, Asian elephants die at a much younger age; captive populations are declining due to a low birth and high death rate.<ref name=Sukumar2003>{{cite book |author=Sukumar, R. |year=2003 |title=The Living Elephants: Evolutionary Ecology, Behavior, and Conservation |publisher=Oxford University Press |location=Oxford |url=https://archive.org/details/livingelephantse00suku_0 |url-access= registration |isbn=978-0-19-510778-4}}</ref>
The Asian elephant is distributed in the [[Indian subcontinent]] and [[Southeast Asia]], from [[India]] in the west to [[Borneo]] in the east, and [[Nepal]] in the north to [[Sumatra]] in the south. It inhabits [[grassland]]s, [[tropical evergreen forest]]s, semi-evergreen forests, moist [[deciduous forest]]s, [[dry deciduous forest]]s and dry thorn forests. It is herbivorous, eating about {{cvt|150|kg}} of vegetation per day. Cows and calves form groups, while males remain solitary or form "bachelor groups" with other males. During the breeding season, males temporarily join female groups to mate. Wild Asian elephants live to be about 60 years old. While female captive elephants are recorded to have lived beyond 60 years when kept in semi-natural surroundings, Asian elephants die at a much younger age in captivity; captive populations are declining due to a low birth and high death rate.


The genus ''Elephas'' originated in [[Sub-Saharan Africa]] during the [[Pliocene]] and spread throughout Africa before expanding into the southern half of Asia.<ref name=Haynes1993>{{cite book |author=Haynes, G. |year=1993 |url=https://books.google.com/books?id=PRrZ-TK91LMC&pg=PA8 |title=Mammoths, Mastodonts, and Elephants: Biology, Behavior and the Fossil Record |publisher=Cambridge University Press |isbn=978-0521456913}}</ref> The earliest indications of captive use of Asian elephants are engravings on seals of the [[Indus Valley civilisation]] dated to the 3rd millennium BC.<ref name=sukumar93>{{cite book |author=Sukumar, R. |year=1993 |url=https://books.google.com/books?id=95MoRwdQlcYC |title=The Asian Elephant: Ecology and Management |edition=Second |publisher=Cambridge University Press |location=Cambridge |isbn=978-0-521-43758-5}}</ref>
Since 1986, the Asian elephant has been listed as [[endangered species|Endangered]] on the [[IUCN Red List]], as the population has declined by at least 50 per cent over the last three elephant generations, which is about 60–75 years. It is primarily threatened by [[loss of habitat]], [[habitat degradation]], [[Habitat fragmentation|fragmentation]] and [[poaching]]. The earliest indications of captive use of Asian elephants are engravings on seals of the [[Indus Valley civilisation]] dated to the 3rd millennium BC.


== Taxonomy ==
== Taxonomy ==
[[File:Tucking in, yet watchful (7568587412).jpg|thumb|Elephant in Sri Lanka]]
[[File:Bathing Elephant.jpg|thumb|Elephant in [[Kaziranga National Park]], India]]
[[File:Elephant Sumatra ProfilG.jpg|thumb|Elephant in Sumatra]]
[[Carl Linnaeus]] proposed the [[scientific name]] ''Elephas maximus'' in 1758 in the [[10th edition of Systema Naturae|10th edition of ''Systema Naturae'']], the foundational work of modern zoological taxonomy.<ref>{{cite book |author=Linnaei, C. |year=1758 |title=Caroli Linnæi Systema naturæ per regna tria naturæ, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis |volume=Tomus I |publisher=Impensis Direct. Laurentti Salvii |location=Holmiae|chapter=''Bruta'' |page=33 |chapter-url=https://archive.org/stream/mobot31753000798865#page/32/mode/2up}}</ref> Carl Linnaeus based his description on a variety of sources and specimens, some of which were later shown to be African elephants. Linnaeus's description heavily relied on a 1693 description of an elephant skeleton by [[John Ray]]. This skeleton still exists within the collection of the [[Museo di Storia Naturale di Firenze|Natural History Museum of the University of Florence]], and almost certainly represents that of [[Hansken]], a female Asian elephant from Sri Lanka that toured Europe in the 17th century.<ref name=":4">{{Cite journal |last=Witteveen|first=Joeri|last2=Müller-Wille|first2=Staffan|date=December 2020|title=Of elephants and errors: naming and identity in Linnaean taxonomy|url=https://link.springer.com/10.1007/s40656-020-00340-z|journal=History and Philosophy of the Life Sciences|language=en|volume=42|issue=4|doi=10.1007/s40656-020-00340-z|issn=0391-9714}}</ref><ref name=":6">{{Cite journal |last=Cappellini |first=Enrico |last2=Gentry |first2=Anthea |last3=Palkopoulou |first3=Eleftheria |last4=Ishida |first4=Yasuko |last5=Cram |first5=David |last6=Roos |first6=Anna-Marie |last7=Watson |first7=Mick |last8=Johansson |first8=Ulf S. |last9=Fernholm |first9=Bo |last10=Agnelli |first10=Paolo |last11=Barbagli |first11=Fausto |last12=Littlewood |first12=D. Tim J. |last13=Kelstrup |first13=Christian D. |last14=Olsen |first14=Jesper V. |last15=Lister |first15=Adrian M. |date=2014-01-01 |title=Resolution of the type material of the Asian elephant, Elephas maximus Linnaeus, 1758 (Proboscidea, Elephantidae) |url=https://academic.oup.com/zoolinnean/article/170/1/222/2433462 |journal=Zoological Journal of the Linnean Society |language=en |volume=170 |issue=1 |pages=222–232 |doi=10.1111/zoj12084 |issn=0024-4082}}</ref> This specimen was declared to be the [[lectotype]] specimen for the species in 2014.<ref name=":6" /> ''Elephas indicus'' was proposed by [[Georges Cuvier]] in 1798, who described an elephant from India.<ref>{{cite book |author=Cuvier, G. |year=1798 |title=Tableau elementaire de l'histoire naturelle des animaux |publisher=Baudouin |location=Paris |pages=148–149 |chapter=''Elephas indicus'' |chapter-url=https://archive.org/stream/tableaulmen00cuvi#page/148/mode/2up}}</ref> [[Coenraad Jacob Temminck]] named an elephant from Sumatra ''Elephas sumatranus'' in 1847.<ref>{{cite book |author=Temminck, C. J. |year=1847 |title=Coup-d'oeil général sur les possessions néerlandaises dans l'Inde archipélagique |volume=Tome second |location=Leide |publisher=A. Arnz and Comp. |chapter=''Elephas sumatranus'' |page=91 |chapter-url=https://archive.org/stream/coupdoeilgnrals03temmgoog#page/n103/mode/2up}}</ref> [[Frederick Nutter Chasen]] classified all three as [[subspecies]] of the Asian elephant in 1940.<ref>{{cite journal |author=Chasen, F.N. |year=1940 |title=A handlist of Malaysian mammals, a systematic list of the mammals of the Malay Peninsula, Sumatra, Borneo and Java, including the adjacent small islands |journal=Bulletin of the Raffles Museum |volume=15 |pages=1–209 |url=https://blsea.nus.edu.sg/shared/UPLOADS/JOURNALS/LOW/BulRaf_no15.pdf |archive-url=https://web.archive.org/web/20200212165718/https://blsea.nus.edu.sg/shared/UPLOADS/JOURNALS/LOW/BulRaf_no15.pdf |archive-date=12 February 2020}}</ref> These three subspecies are currently recognised as [[Valid name (zoology)|valid]] [[Taxon|taxa]].<ref name="MSOF"/><ref name="Shoshani82">{{cite journal |author=Shoshani, J. |author2=Eisenberg, J. F. |year=1982 |title=''Elephas maximus'' |journal=Mammalian Species |issue=182 |pages=1–8 |url=http://www.science.smith.edu/msi/pdf/i0076-3519-182-01-0001.pdf |jstor=3504045 |doi=10.2307/3504045 |archive-url=https://web.archive.org/web/20130430131057/http://www.science.smith.edu/msi/pdf/i0076-3519-182-01-0001.pdf |archive-date=30 April 2013 }}</ref> Results of [[Phylogeography|phylogeographic]] and [[Morphology (biology)|morphological]] analyses indicate that the Sri Lankan and Indian elephants are not distinct enough to warrant classification as separate subspecies.<ref>{{cite journal |author1=Fleischer, R.C. |name-list-style=amp |author2=Perry, E.A. |author3=Muralidharan, K. |author4= Stevens, E.E. |author5=Wemmer, C.M. |year=2001 |title=Phylogeography of the Asian elephant (''Elephas maximus'') based on mitochondrial DNA |journal=Evolution |volume=55 |issue=9 |pages=1882–1892 |doi=10.1111/j.0014-3820.2001.tb00837.x |doi-access=free |jstor=2680432 |pmid=11681743}}</ref>


[[Carl Linnaeus]] proposed the [[scientific name]] ''Elephas maximus'' in 1758 for an elephant from [[Ceylon]].<ref>{{cite book |author=Linnaei, C. |year=1758 |title=Caroli Linnæi Systema naturæ per regna tria naturæ, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis |volume=Tomus I |publisher=Impensis Direct. Laurentti Salvii |location=Holmiae|chapter=''Bruta'' |page=33 |chapter-url=https://archive.org/stream/mobot31753000798865#page/32/mode/2up}}</ref> ''Elephas indicus'' was proposed by [[Georges Cuvier]] in 1798, who described an elephant from India.<ref>{{cite book |author=Cuvier, G. |year=1798 |title=Tableau elementaire de l'histoire naturelle des animaux |publisher=Baudouin |location=Paris |pages=148–149 |chapter=''Elephas indicus'' |chapter-url=https://archive.org/stream/tableaulmen00cuvi#page/148/mode/2up}}</ref> [[Coenraad Jacob Temminck]] named an elephant from Sumatra ''Elephas sumatranus'' in 1847.<ref>{{cite book |author=Temminck, C. J. |year=1847 |title=Coup-d'oeil général sur les possessions néerlandaises dans l'Inde archipélagique |volume=Tome second |location=Leide |publisher=A. Arnz and Comp. |chapter=''Elephas sumatranus'' |page=91 |chapter-url=https://archive.org/stream/coupdoeilgnrals03temmgoog#page/n103/mode/2up}}</ref> [[Frederick Nutter Chasen]] classified all three as [[subspecies]] of the Asian elephant in 1940.<ref>{{cite journal |author=Chasen, F.N. |year=1940 |title=A handlist of Malaysian mammals, a systematic list of the mammals of the Malay Peninsula, Sumatra, Borneo and Java, including the adjacent small islands |journal=Bulletin of the Raffles Museum |volume=15 |pages=1–209 |url=https://blsea.nus.edu.sg/shared/UPLOADS/JOURNALS/LOW/BulRaf_no15.pdf |archive-url=https://web.archive.org/web/20200212165718/https://blsea.nus.edu.sg/shared/UPLOADS/JOURNALS/LOW/BulRaf_no15.pdf |archive-date=12 February 2020}}</ref> These three subspecies are currently recognised as [[Valid name (zoology)|valid]] [[Taxon|taxa]].<ref name="Shoshani82"/><ref name=iucn/> Results of [[Phylogeography|phylogeographic]] and [[Morphology (biology)|morphological]] analyses indicate that the Sri Lankan and Indian elephants are not distinct enough to warrant classification as separate subspecies.<ref>{{cite journal |author1=Fleischer, R.C. |name-list-style=amp |author2=Perry, E.A. |author3=Muralidharan, K. |author4= Stevens, E.E. |author5=Wemmer, C.M. |year=2001 |title=Phylogeography of the Asian elephant (''Elephas maximus'') based on mitochondrial DNA |journal=Evolution |volume=55 |issue=9 |pages=1882–1892 |doi=10.1111/j.0014-3820.2001.tb00837.x |doi-access=free |jstor=2680432 |pmid=11681743}}</ref>
Three subspecies are recognised:<ref name="MSOF"/><ref name="Shoshani82"/>
* [[Sri Lankan elephant]] (''E. maximus maximus'' {{small|Linnaeus, 1758}})
* [[Indian elephant]] (''E. maximus indicus'' {{small|Cuvier, 1798}})  
* [[Sumatran elephant]] (''E. maximus sumatranus'' {{small|Temminck, 1847}})


Three subspecies are recognised:<ref name=iucn /><ref name=Shoshani82/>
Sri Lankan elephants are the largest subspecies. Their skin colour is darker than of ''E. m. indicus'' and of ''E. m. sumatranus'' with larger and more distinct patches of [[depigmentation]] on ears, face, trunk and belly.<ref name="Shoshani06">{{cite book |last1=[[Jeheskel Shoshani|Shoshani, J]]. |year=2006 |chapter=Taxonomy, Classification, and Evolution of Elephants |pages=3–14 |title=Biology, medicine, and surgery of elephants |editor1-last=Fowler |editor1-first=M. E. |editor2-last=Mikota |editor2-first=S. K. |publisher=Wiley-Blackwell |isbn=0-8138-0676-3 |chapter-url=https://books.google.com/books?id=oCpiZA61tyQC&pg=PA3 |access-date=4 June 2020 |archive-date=20 October 2022 |archive-url=https://web.archive.org/web/20221020223555/https://books.google.com/books?id=oCpiZA61tyQC&pg=PA3 |url-status=live }}</ref> The skin color of the Indian elephant is generally grey and lighter than that of ''E. m. maximus'' but darker than that of ''E. m. sumatranus''.<ref name="Shoshani82"/>
{| class="wikitable"
|-
! Subspecies !!  Distribution
|-
|[[Sri Lankan elephant]]<br />''E. maximus maximus''{{small|Linnaeus, 1758}}
[[File:Tucking in, yet watchful (7568587412).jpg|175px]]
||[[File:Elephant Distribution Map Sri Lanka 2015.jpg|175px]]
|-
|[[Indian elephant]]<br />''E. maximus indicus'' {{small|Cuvier, 1798}}
[[File:Male Elephant Tusker Nagarhole Karnataka Apr22 D72 23736.jpg|175px]]
||[[Bangladesh]], [[Bhutan]], [[Cambodia]], China, India, [[Laos]], [[Malay Peninsula]], [[Myanmar]], [[Nepal]], [[Thailand]], [[Vietnam]];
|-
|[[Sumatran elephant]]<br />''E. maximus sumatranus'' {{small|Temminck, 1847}}
[[File:Bayi gajah Sumatera di Taman Nasional Tesso Nilo.jpg|175px]]
|| [[Sumatra]].
|-
|[[Bornean elephant]]<br />''E. maximus borneensis'' {{small|Deraniyagala, 1950}}
[[File:Pygmy Elephants (Elephas maximus borneensis) mother and baby (8074148819).jpg|175px]]
||Sabah, Borneo
|-
|}


A fourth potential subspecies, the [[Borneo elephant]], occurs in [[Borneo]]'s northeastern parts, primarily in [[Sabah]] ([[Malaysia]]), and sometimes in [[Kalimantan]] ([[Indonesia]]).<ref>{{Cite web|last=Farrows|title=Bornean Elephant: Species in World Land Trust reserves|url=https://www.worldlandtrust.org/species/mammals/bornean-elephant/|access-date=2021-01-26|website=World Land Trust}}</ref>
A potential fourth subspecies, the [[Borneo elephant]] (''Elephas maximus borneensis''), occurs in [[Borneo]]'s northeastern parts, primarily in [[Sabah]] ([[Malaysia]]), and sometimes in [[Kalimantan]] ([[Indonesia]]).<ref>{{cite web|last=Farrows|title=Bornean Elephant: Species in World Land Trust reserves|url=https://www.worldlandtrust.org/species/mammals/bornean-elephant/|access-date=2021-01-26|website=World Land Trust|archive-date=14 May 2021|archive-url=https://web.archive.org/web/20210514030341/https://www.worldlandtrust.org/species/mammals/bornean-elephant/|url-status=live}}</ref> It was proposed by [[Paules Edward Pieris Deraniyagala|Paules Deraniyagala]] in 1950, who described an elephant in an illustration published in the ''[[National Geographic]]'' magazine, but not as a living elephant in accordance with the rules of the [[International Code of Zoological Nomenclature]].{{sfn|Deraniyagala|1955|p=123–124}}<ref name="Cranbrook07">{{cite journal |author1=Cranbrook, E. |name-list-style=amp |author2=Payne, J. |author3=Leh, C.M.U. |year=2007 |title=Origin of the elephants ''Elephas maximus'' L. of Borneo |journal=Sarawak Museum Journal |volume=63 |issue=84 |pages=95–125 |doi=10.61507/smj22-2007-Q11Q-04 |url=http://assets.panda.org/downloads/pages_from_originofelephants_in_borneofinal2oct07_2.pdf |access-date=13 March 2011 |archive-date=27 September 2012 |archive-url=https://web.archive.org/web/20120927014013/http://assets.panda.org/downloads/pages_from_originofelephants_in_borneofinal2oct07_2.pdf |url-status=live }}</ref> These elephants living in northern Borneo are smaller than all the other subspecies, but had larger ears, a longer tail, and straight tusks.<ref>{{cite journal |author1=Nurzhafarina, O. |author2=Maryati, M. |author3=Ahmad, A.H. |author4=Nathan, S. |author5=Pierson, H.T. |author6=Goosens, B. |year=2008 |url=http://www.ums.edu.my/webv3/appl/downloadfiles/NURZHAFARINA%20Othman.pdf |title=A preliminary study on the morphometrics of the Bornean Elephant |archive-url=https://web.archive.org/web/20120307134646/http://www.ums.edu.my/webv3/appl/downloadfiles/NURZHAFARINA%20Othman.pdf |archive-date=March 7, 2012 |journal=Journal of Tropical Biology and Conservation |volume=4 |issue=1 |pages=109–113}}</ref> Results of genetic analysis indicate that their ancestors separated from the mainland population about 300,000 years ago.<ref name="Fernando">{{cite journal |last1=Fernando |first1=P. |last2=Vidya |first2=T. N. C. |last3=Payne |first3=J. |last4=Stuewe |first4=M. |last5=Davison |first5=G. |last6=Alfred |first6=R. J. |last7=Andau |first7=P. |last8=Bosi |first8=E. |last9=Kilbourn |first9=A. |name-list-style=amp|year=2003 |title=DNA Analysis Indicates That Asian Elephants Are Native to Borneo and Are Therefore a High Priority for Conservation |journal=PLOS Biology |volume=1 |issue=1 |article-number=e6 |doi=10.1371/journal.pbio.0000006 |pmid=12929206 |pmc=176546 |doi-access=free }}</ref> A study in 2003, using [[mitochondrial DNA]] analysis and [[Microsatellite (genetics)|microsatellite data]], indicated that the Borneo elephant population is derived from stock that originated in the region of the [[Sunda Islands]], and suggests that the Borneo population has been separated from the other elephant populations of southeast Asia since the [[Pleistocene]].<ref name=Fernando03>{{cite journal |author=Fernando, P. |author2=Vidya T.N.C. |author3=Payne J. |author4=Stuewe M. |author5=Davison G. |author6=Alfred, R.J. |author7=Andau, P. |author8=Bosi, E. |author9=Kilbourn, A. |author10=Melnick, D.J. |year=2003 |title=DNA Analysis indicates that Asian Elephants are native to Borneo and are therefore a High Priority for conservation |journal=PLOS Biology |volume=1 |issue=1 |article-number=e6 |doi=10.1371/journal.pbio.0000006 |pmid=12929206 |pmc=176546 |doi-access=free }}</ref>
''Elephas maximus borneensis'' was proposed by [[Paules Edward Pieris Deraniyagala]] in 1950 who described an elephant in an illustration published in the ''[[National Geographic]]'' magazine, but not a living elephant in accordance with the rules of the [[International Code of Zoological Nomenclature]].<ref name=Deraniyagala>{{cite book |author=Deraniyagala, P.E.P. |year=1955 |title=Some Extinct Elephants, Their Relatives and the Two Living Species |publisher=Ceylon Natural History Museum |location=Colombo}}</ref><ref name=Cranbrook07>{{cite journal |author1=Cranbrook, E. |name-list-style=amp|author2=Payne, J. |author3=Leh, C.M.U. |year=2007 |title=Origin of the elephants ''Elephas maximus'' L. of Borneo |journal=Sarawak Museum Journal |volume=63 |pages=95–125 |url=http://assets.panda.org/downloads/pages_from_originofelephants_in_borneofinal2oct07_2.pdf}}</ref> The Asian elephants living in northern [[Borneo]] are smaller than all the other subspecies, but with larger ears, a longer tail, and straight tusks. Results of genetic analysis indicate that their ancestors separated from the mainland population about 300,000 years ago.<ref name="Fernando">{{cite journal |last1=Fernando |first1=P. |last2=Vidya |first2=T. N. C. |last3=Payne |first3=J. |last4=Stuewe |first4=M. |last5=Davison |first5=G. |last6=Alfred |first6=R. J. |last7=Andau |first7=P. |last8=Bosi |first8=E. |last9=Kilbourn |first9=A. |name-list-style=amp|year=2003 |title=DNA Analysis Indicates That Asian Elephants Are Native to Borneo and Are Therefore a High Priority for Conservation |journal=PLOS Biology |volume=1 |issue=1 |page=e6 |doi=10.1371/journal.pbio.0000006 |pmid=12929206 |pmc=176546}}</ref>
In 2003, [[mitochondrial DNA]] analysis and [[Microsatellite (genetics)|microsatellite data]] indicated that the Borneo elephant population is derived from stock that originated in the region of the [[Sunda Islands]]. The genetic divergence of Borneo elephants warrants their recognition as a separate [[Evolutionarily Significant Unit]].<ref name=Fernando03>{{cite journal |author=Fernando, P. |author2=Vidya T.N.C. |author3=Payne J. |author4=Stuewe M. |author5=Davison G. |author6=Alfred, R.J. |author7=Andau, P. |author8=Bosi, E. |author9=Kilbourn, A. |author10=Melnick, D.J. |year=2003 |title=DNA Analysis indicates that Asian Elephants are native to Borneo and are therefore a High Priority for conservation |journal=PLOS Biology |volume=1 |issue=1 |page=e6 |doi=10.1371/journal.pbio.0000006 |pmid=12929206 |pmc=176546}}</ref>


The following Asian elephants were proposed as [[extinct]] subspecies, but are now considered [[Synonym (taxonomy)|synonymous]] with the Indian elephant:<ref name=Shoshani82/>
The following Asian elephants were proposed as [[extinct]] subspecies, but are now considered [[Synonym (taxonomy)|synonymous]] with the Indian elephant:<ref name="Shoshani82"/>
* [[Syrian elephant]] (''E. m. asurus''), proposed by Deraniyagala in 1950, was based on [[Bronze Age]] illustrations.<ref name=Deraniyagala/><ref>{{cite journal |author1=Girdland Flink, E.L. |name-list-style=amp |author2=Albayrak, E. |author3=Lister, A. |year=2018 |title=Genetic insight into an extinct population of Asian elephants (''Elephas maximus'') in the Near East |journal=Open Quaternary |volume=4 |issue=1 |pages=1–9 |doi=10.5334/oq.36 |doi-access=free }}</ref>
* [[Syrian elephant]] (''E. m. asurus''), proposed by Deraniyagala, based on fossil remains and [[Bronze Age]] illustrations.{{sfn|Deraniyagala|1955|p=116}}<ref>{{cite journal |author1=Girdland Flink, E.L. |name-list-style=amp |author2=Albayrak, E. |author3=Lister, A. |year=2018 |title=Genetic insight into an extinct population of Asian elephants (''Elephas maximus'') in the Near East |journal=Open Quaternary |volume=4 |issue=1 |pages=1–9 |doi=10.5334/oq.36 |doi-access=free |hdl=2164/13525 |hdl-access=free }}</ref>
* [[Elephants in ancient China|Chinese elephant]] (''E. m. rubridens''), also proposed by Deraniyagala in 1950, was based on a bronze statuette of an elephant.<ref name=Deraniyagala/>
* [[Elephants in ancient China|Chinese elephant]] (''E. m. rubridens''), also proposed by Deraniyagala, based on a Chinese bronze statuette.{{sfn|Deraniyagala|1955|p=125}}
* [[Javan elephant]] (''E. m. sondaicus''), also proposed by Deraniyagala in 1950, was an illustration of a carving on the Buddhist monument of [[Borobudur]].<ref name=Deraniyagala/><ref name=Cranbrook07/>
* [[Javan elephant]] (''E. m. sondaicus''), also proposed by Deraniyagala, based on an illustration of a carving on the Buddhist monument of [[Borobudur]].{{sfn|Deraniyagala|1955|p=124}}<ref name="Cranbrook07"/>


=== Evolution ===
=== Evolution ===
The genus ''[[Elephas]]'', of which the Asian elephant is the only living member, are the closest relatives of the extinct [[mammoth]]s. The two groups are estimated to have split from each other around 7 million years ago.<ref>{{Cite journal |last=Lin |first=Haifeng |last2=Hu |first2=Jiaming |last3=Baleka |first3=Sina |last4=Yuan |first4=Junxia |last5=Chen |first5=Xi |last6=Xiao |first6=Bo |last7=Song |first7=Shiwen |last8=Du |first8=Zhicheng |last9=Lai |first9=Xulong |last10=Hofreiter |first10=Michael |last11=Sheng |first11=Guilian |date=July 2023 |title=A genetic glimpse of the Chinese straight-tusked elephants |url=https://royalsocietypublishing.org/doi/10.1098/rsbl.2023.0078 |journal=Biology Letters |language=en |volume=19 |issue=7 |doi=10.1098/rsbl.2023.0078 |issn=1744-957X |pmc=10353889 |pmid=37463654}}</ref> The earliest ''Elephas'' species, ''[[Elephas ekorensis]]'', is known from the Early [[Pliocene]] of East Africa, around 5-4.2 million years ago.<ref>{{Cite journal |last=Sanders |first=William J. |last2=Haile-Selassie |first2=Yohannes |date=June 2012 |title=A New Assemblage of Mid-Pliocene Proboscideans from the Woranso-Mille Area, Afar Region, Ethiopia: Taxonomic, Evolutionary, and Paleoecological Considerations |url=http://link.springer.com/10.1007/s10914-011-9181-y |journal=Journal of Mammalian Evolution |language=en |volume=19 |issue=2 |pages=105–128 |doi=10.1007/s10914-011-9181-y |issn=1064-7554}}</ref> The oldest remains of the genus in Asia are known from the [[Siwalik Hills]] in the Indian subcontinent, dating to the late Pliocene, around 3.6-3.2 million years ago, assigned to the species ''Elephas planifrons.''<ref>{{Cite journal |last1=Iannucci |first1=Alessio |last2=Sardella |first2=Raffaele |date=28 February 2023 |title=What Does the "Elephant-Equus" Event Mean Today? Reflections on Mammal Dispersal Events around the Pliocene-Pleistocene Boundary and the Flexible Ambiguity of Biochronology |journal=Quaternary |language=en |volume=6 |issue=1 |pages=16 |doi=10.3390/quat6010016 |issn=2571-550X |doi-access=free}}</ref> The modern Asian elephant is suggested to have evolved from the species ''[[Elephas hysudricus]]'', which first appeared at the beginning of the [[Early Pleistocene]] around 2.6 million years ago, and is primarily known from remains of Early-[[Middle Pleistocene]] age found on the Indian subcontinent.''<ref>{{Cite journal |last=Lister |first=Adrian M. |last2=Dirks |first2=Wendy |last3=Assaf |first3=Amnon |last4=Chazan |first4=Michael |last5=Goldberg |first5=Paul |last6=Applbaum |first6=Yaakov H. |last7=Greenbaum |first7=Nathalie |last8=Horwitz |first8=Liora Kolska |date=September 2013 |title=New fossil remains of Elephas from the southern Levant: Implications for the evolutionary history of the Asian elephant |url=https://linkinghub.elsevier.com/retrieve/pii/S003101821300237X |journal=Palaeogeography, Palaeoclimatology, Palaeoecology |language=en |volume=386 |pages=119–130 |doi=10.1016/j.palaeo.2013.05.013}}</ref>''
{{cladogram|style=font-size:70%|caption=Elephantids phylogeny based on morphological and DNA evidence
{{clade|{{clade
|1={{clade
|1=''[[Loxodonta]]'' <span style="{{MirrorH}}">[[File:African elephant (PSF).png|60px]]</span>
|2={{extinct}}''[[Palaeoloxodon]]'' [[File:Palaeoloxodon namadicus-bpk (cropped).jpg|60 px]]
}}
|2={{clade
|1=''[[Elephas]]'' <span style="{{MirrorH}}">[[File:Indian elephant (PSF).png|70 px]]</span>
                    |2={{extinct}}''[[Mammuthus]]'' [[File:Mammuthus trogontherii122DB.jpg|70 px]]
                    }}}}|label1=[[Elephantidae]]}}
}}
 
The genus ''[[Elephas]]'', of which the Asian elephant is the only living member, is the closest relative of the extinct [[mammoth]]s. The two groups are estimated to have split from each other around 7 million years ago.<ref>{{cite journal |last1=Rohland |first1=Nadin |last2=Reich |first2=David |last3=Mallick |first3=Swapan |last4=Meyer |first4=Matthias |last5=Green |first5=Richard E. |last6=Georgiadis |first6=Nicholas J. |last7=Roca |first7=Alfred L. |last8=Hofreiter |first8=Michael |date=2010-12-21 |title=Genomic DNA Sequences from Mastodon and Woolly Mammoth Reveal Deep Speciation of Forest and Savanna Elephants |journal=PLOS Biology |language=en |volume=8 |issue=12 |article-number=e1000564 |doi=10.1371/journal.pbio.1000564 |doi-access=free |issn=1545-7885 |pmc=3006346 |pmid=21203580}}</ref>
''Elephas'' originated in [[Sub-Saharan Africa]] during the [[Pliocene]] and spread throughout Africa before expanding into the southern half of Asia.<ref name=Haynes1993>{{cite book |author=Haynes, G. |year=1993 |url=https://books.google.com/books?id=PRrZ-TK91LMC&pg=PA8 |title=Mammoths, Mastodonts, and Elephants: Biology, Behavior and the Fossil Record |publisher=Cambridge University Press |isbn=978-0-521-45691-3 |access-date=19 March 2018 |archive-date=17 March 2024 |archive-url=https://web.archive.org/web/20240317064751/https://books.google.com/books?id=PRrZ-TK91LMC&pg=PA8#v=onepage&q&f=false |url-status=live|page=8}}</ref> The earliest ''Elephas'' species, ''[[Elephas ekorensis]]'', is known from the Early [[Pliocene]] of East Africa, around 5–4.2 million years ago.<ref>{{cite journal |last1=Sanders |first1=William J. |last2=Haile-Selassie |first2=Yohannes |date=June 2012 |title=A New Assemblage of Mid-Pliocene Proboscideans from the Woranso-Mille Area, Afar Region, Ethiopia: Taxonomic, Evolutionary, and Paleoecological Considerations |url=http://link.springer.com/10.1007/s10914-011-9181-y |journal=Journal of Mammalian Evolution |language=en |volume=19 |issue=2 |pages=105–128 |doi=10.1007/s10914-011-9181-y |s2cid=254703858 |issn=1064-7554 |access-date=12 August 2023 |archive-date=17 March 2024 |archive-url=https://web.archive.org/web/20240317064827/https://link.springer.com/article/10.1007/s10914-011-9181-y |url-status=live |url-access=subscription }}</ref> The oldest remains of the genus in Asia are known from the [[Siwalik Hills]] in the Indian subcontinent, dating to the late Pliocene, around 3.6 to 3.2 million years ago, assigned to the species ''[[Elephas planifrons]].''<ref>{{cite journal |last1=Iannucci |first1=Alessio |last2=Sardella |first2=Raffaele |date=28 February 2023 |title=What Does the "Elephant-Equus" Event Mean Today? Reflections on Mammal Dispersal Events around the Pliocene-Pleistocene Boundary and the Flexible Ambiguity of Biochronology |journal=Quaternary |language=en |volume=6 |issue=1 |page=16 |doi=10.3390/quat6010016 |issn=2571-550X |doi-access=free|bibcode=2023Quat....6...16I |hdl=11573/1680082 |hdl-access=free }}</ref> The modern Asian elephant is suggested to have evolved from the species ''[[Elephas hysudricus]]'', which first appeared at the beginning of the [[Early Pleistocene]] around 2.6 million years ago, and is primarily known from remains of Early-[[Middle Pleistocene]] age found on the Indian subcontinent.''<ref>{{cite journal |last1=Lister |first1=Adrian M. |last2=Dirks |first2=Wendy |last3=Assaf |first3=Amnon |last4=Chazan |first4=Michael |last5=Goldberg |first5=Paul |last6=Applbaum |first6=Yaakov H. |last7=Greenbaum |first7=Nathalie |last8=Horwitz |first8=Liora Kolska |date=September 2013 |title=New fossil remains of Elephas from the southern Levant: Implications for the evolutionary history of the Asian elephant |url=https://linkinghub.elsevier.com/retrieve/pii/S003101821300237X |journal=Palaeogeography, Palaeoclimatology, Palaeoecology |language=en |volume=386 |pages=119–130 |doi=10.1016/j.palaeo.2013.05.013 |bibcode=2013PPP...386..119L |access-date=12 August 2023 |archive-date=2 January 2023 |archive-url=https://web.archive.org/web/20230102052605/https://linkinghub.elsevier.com/retrieve/pii/S003101821300237X |url-status=live |url-access=subscription }}</ref>'' Skeletal remains of ''E. m. asurus'' have been recorded from the [[Middle East]]: [[Iran]], [[Iraq]], [[Syria]], and [[Turkey]] from periods dating between at least 1800 BC and likely 700 BC.<ref name=":0">{{cite journal|last1=Çakırlar|first1=Canan|last2=Ikram|first2=Salima|date=2016-05-03|title='When elephants battle, the grass suffers.' Power, ivory and the Syrian elephant|journal=Levant|language=en|volume=48|issue=2|pages=167–183|doi=10.1080/00758914.2016.1198068|issn=0075-8914|doi-access=free}}</ref>


== Description ==
== Description ==
[[File:ElephantSkelLyd2.png|thumb|Illustration of an elephant skeleton<ref name=lydekker/>]]
[[File:Asian elephant size comparison.jpg|thumb|Young adult male Asian elephant skeleton compared to a human]]
[[File:Toes of an Asian elephant.jpg|thumb|The nail-like structures on the toes of an Asian elephant]]
[[File:Asiatic Elephant.jpg|thumb|Depigmented skin on the forehead and ears of an Asian elephant]]
In general, the Asian elephant is smaller than the [[African bush elephant]] and has the highest body point on the head. The back is convex or level. The [[ear]]s are small with dorsal borders folded laterally. It has up to 20 pairs of ribs and 34 [[caudal vertebrae]]. The feet have five nail-like structures on each forefoot, and four on each hind foot.<ref name=Shoshani82/> The forehead has two hemispherical bulges, unlike the flat front of the African elephants.<ref name=Clutton-Brock>{{cite book |author=Clutton-Brock, J. |title=A Natural History of Domesticated Mammals |year=1987 |page=208 |isbn=978-0-521-34697-9 |publisher=British Museum (Natural History) |location=London}}</ref> Its long [[Elephant#Trunk|trunk]] or [[proboscis]] has only one fingerlike tip, in contrast to the African elephants which have two.<ref name=Shoshani82/> Hence the Asian species relies more on wrapping around a food item and squeezing it into its mouth, rather than grasping with the tip. Asian elephants have more muscle coordination and can perform more complex tasks.<ref>{{cite book |editor=Shoshani, J. |year=2000 |title=Elephants: Majestic Creatures of the Wild |publisher=Checkmark Books|pages=38–41, 74–77 |isbn=978-0-87596-143-9 |oclc=475147472}}</ref>
In general, the Asian elephant is smaller than the [[African bush elephant]] and has the highest body point on the head. The back is convex or level. The [[ear]]s are small with dorsal borders folded laterally. It has up to 20 pairs of ribs and 34 [[caudal vertebrae]]. The feet have five nail-like structures on each forefoot, and four on each hind foot.<ref name="Shoshani82" /> The forehead has two hemispherical bulges, unlike the flat front of the African elephants.<ref name="Clutton-Brock">{{cite book |last=Clutton-Brock |first=Juliet |title=A Natural History of Domesticated Mammals |publisher=Cambridge University Press |year=1987 |isbn=978-0-292-71532-5 |page=141}}</ref> Its long [[Elephant#Trunk|trunk]] or [[proboscis]] has only one fingerlike tip, in contrast to the African elephants, which have two.<ref name="Shoshani82" /> Hence, the Asian species relies more on wrapping around a food item and squeezing it into its mouth, rather than grasping with the tip. Asian elephants have more muscle coordination and can perform more complex tasks.<ref>{{cite book |editor=Shoshani, J. |year=2000 |title=Elephants: Majestic Creatures of the Wild |publisher=Checkmark Books|pages=38–41, 74–77 |isbn=978-0-87596-143-9 |oclc=475147472}}</ref>[[File:Toes of an Asian elephant.jpg|thumb|The nail-like structures on the toes of an Asian elephant]]Cows usually lack [[tusk]]s; if tusks—in that case, called "tushes"—are present, they are barely visible and only seen when the mouth is open.<ref>{{cite journal |last1=Chelliah |first1=Karpagam |last2=Sukumar |first2=Raman |date=2013-12-01 |title=The role of tusks, musth and body size in male–male competition among Asian elephants, Elephas maximus |url=https://www.sciencedirect.com/science/article/pii/S0003347213004260 |journal=Animal Behaviour |volume=86 |issue=6 |pages=1207–1214 |doi=10.1016/j.anbehav.2013.09.022 |issn=0003-3472 |access-date=17 March 2024 |archive-date=2 December 2018 |archive-url=https://web.archive.org/web/20181202215326/https://www.sciencedirect.com/science/article/pii/S0003347213004260 |url-status=live |url-access=subscription }}</ref> The [[Tooth enamel|enamel plates]] of the [[molars]] are greater in number and closer together in Asian elephants.<ref>{{cite journal |url=https://anatomypubs.onlinelibrary.wiley.com/doi/10.1002/ar.21011 |title=Qualitative Comparison of the Cranio-Dental Osteology of the Extant Elephants, Elephas Maximus (Asian Elephant) and Loxodonta africana (African Elephant) |author=Nancy E. Todd |journal=Anatomical Record|volume=293 |issue=1 |date=January 2010 |pages=62–73 |doi=10.1002/ar.21011 |pmid=19937635 |access-date=21 May 2024 |archive-date=21 May 2024 |archive-url=https://web.archive.org/web/20240521080809/https://anatomypubs.onlinelibrary.wiley.com/doi/10.1002/ar.21011 |url-status=live }}</ref> Some bulls may also lack tusks; these individuals are called "makhnas" and are especially common among the Sri Lankan elephant population.<ref>{{cite web |url=https://www.elephant.se/index.php?id=18 |title=Makhna |work=Elephant database |access-date=1 December 2023 |archive-date=21 May 2024 |archive-url=https://web.archive.org/web/20240521080811/https://www.elephant.se/index.php?id=18 |url-status=live }}</ref> A tusk from an {{convert|11|ft|m|abbr=on}} tall elephant killed by Sir [[Victor Brooke]] measured {{convert|8|ft|m|abbr=on}} in length, and nearly {{convert|17|in|cm|abbr=on}} in circumference, and weighed {{convert|90|lb|kg|abbr=on}}. This tusk's weight is, however, exceeded by the weight of a shorter tusk of about {{convert|6|ft|m|abbr=on}} in length, which weighed {{convert|100|lb|kg|abbr=on}}, and there have reportedly been tusks weighing over {{convert|150|lb|kg|abbr=on}}.<ref name=lydekker/>
 
Cows usually lack [[tusk]]s; if tusks—in that case, called "tushes"—are present, they are barely visible and only seen when the mouth is open.{{citation needed|date=October 2019}} The [[Tooth enamel|enamel plates]] of the [[molars]] are greater in number and closer together in Asian elephants. Some bulls may also lack tusks; these individuals are called "filsy makhnas", and are especially common among the Sri Lankan elephant population.<ref name=Clutton-Brock/> A record tusk described by [[George P. Sanderson]] measured {{convert|5|ft|m|abbr=on}} along the curve, with a girth of {{convert|16|in|cm|abbr=on}} at the point of emergence from the jaw, the weight being {{convert|104+1/2|lb|kg|abbr=on}}. This was from an elephant killed by Sir Brooke and measured {{convert|8|ft|m|abbr=on}} in length, and nearly {{convert|17|in|cm|abbr=on}} in circumference, and weighed {{convert|90|lb|kg|abbr=on}}. The tusk's weight was, however, exceeded by the weight of a shorter tusk of about {{convert|6|ft|m|abbr=on}} in length which weighed {{convert|100|lb|kg|abbr=on}}.<ref name=lydekker/>
 
[[File:Elephant - Guruvayur.JPG|thumb|right|Depigmented skin on the forehead and ears of an Asian elephant]]


Skin colour is usually grey, and may be masked by soil because of dusting and [[wallowing]]. Their wrinkled skin is movable and contains many nerve centres. It is smoother than that of African elephants and may be [[Depigmentation|depigmented]] on the trunk, ears, or neck. The [[epidermis (zoology)|epidermis]] and [[dermis]] of the body average {{convert|18|mm|in|abbr=on}} thick; skin on the [[dorsum (biology)|dorsum]] is {{convert|30|mm|in|abbr=on}} thick providing protection against bites, bumps, and adverse weather. Its folds increase surface area for heat dissipation. They can tolerate cold better than excessive heat. Skin temperature varies from {{convert|24|to|32.9|C|F|abbr=on}}. Body temperature averages {{convert|35.9|C|F|abbr=on}}.<ref name=Shoshani82/>
Skin colour is usually grey, and may be masked by soil because of dusting and [[wallowing]]. Their wrinkled skin is movable and contains many nerve centres. It is smoother than that of African elephants and may be [[Depigmentation|depigmented]] on the trunk, ears, or neck. The [[epidermis (zoology)|epidermis]] and [[dermis]] of the body average {{convert|18|mm|in|abbr=on}} thick; skin on the [[dorsum (biology)|dorsum]] is {{convert|30|mm|in|abbr=on}} thick providing protection against bites, bumps, and adverse weather. Its folds increase surface area for heat dissipation. They can tolerate cold better than excessive heat. Skin temperature varies from {{convert|24|to|32.9|C|F|abbr=on}}. Body temperature averages {{convert|35.9|C|F|abbr=on}}.<ref name=Shoshani82/>


===Size===
===Size===
On average, when fully-grown, bulls are about {{convert|2.75|m|ft|abbr=on}} tall at the shoulder and {{convert|4.0|t|ST|abbr=on}} in weight, while cows are smaller at about {{convert|2.40|m|ft|abbr=on}} at the shoulder and {{convert|2.7|t|ST|abbr=on}} in weight.<ref name=probos_mass>{{Cite journal |last1=Larramendi |first1=A. |year=2016 |title=Shoulder height, body mass and shape of proboscideans | journal=Acta Palaeontologica Polonica |volume=61 |issue=3 |pages=537–574 |doi=10.4202/app.00136.2014 |doi-access=free}}</ref><ref name=Sukumar>{{cite journal | last1=Sukumar |first1 =R. |last2=Joshi |first2=N.V. |last3=Krishnamurthy |first3=V. |year=1988 |title=Growth in the Asian elephant |doi=10.1007/BF03179558 | journal=Proceedings: Animal Sciences |volume=97 |issue=6|pages=561–571 |s2cid=84871322}}</ref><ref name=Kurt>{{cite journal |author1=Kurt, F. |author2=Kumarasinghe, J.C. |year=1998 |title=Remarks on body growth and phenotypes in Asian elephant ''Elephas maximus'' |doi=10.4098/AT.arch.98-39 |journal=Acta Theriologica |volume=5 |issue=Supplement |pages=135–153 |doi-access=free}}</ref> Sexual dimorphism in body size is relatively less pronounced in Asian elephants than in African bush elephants; with bulls averaging 15% and 23% taller in the former and latter respectively.<ref name=probos_mass/> Length of body and head including trunk is {{convert|5.5|-|6.5|m|ft|abbr=on}} with the tail being {{convert|1.2|-|1.5|m|ft|abbr=on}} long.<ref name=Shoshani82/> The largest bull elephant ever recorded was shot by the [[Maharajah]] of Susang in the Garo Hills of [[Assam]], [[India]] in 1924, it weighed an estimated {{convert|7|t|ST|abbr=on}}, stood {{convert|3.43|m|ft|abbr=on}} tall at the shoulder and was {{convert|8.06|m|ft|abbr=on}} long from head to tail.<ref name=probos_mass/><ref>{{cite journal |last1=Pillai |first1=N.G. |year=1941 |title=On the height and age of an elephant |journal=Journal of the Bombay Natural History Society |volume=42 |pages=927–928}}</ref><ref name=Wood>{{cite book |author=Wood, G. |url=https://archive.org/details/guinnessbookofan00wood |title=The Guinness Book of Animal Facts and Feats |year=1983 |isbn=978-0-85112-235-9 |publisher=Guinness Superlatives |place=Enfield, Middlesex}}</ref> There are reports of larger individuals as tall as {{convert|3.7|m|ft|abbr=on}}.<ref name=lydekker>{{cite book |author=Lydekker, R. |year=1894 |title=The Royal Natural History |volume=2 |url=https://archive.org/stream/royalnaturalhist02lydeuoft#page/542/mode/2up |publisher=Frederick Warne and Co. |location=London}}</ref>
On average, when fully-grown, bulls are about {{cvt|2.75|m}} tall at the shoulder and {{cvt|4.0|t|ST}} in weight, while cows are smaller at about {{cvt|2.40|m}} at the shoulder and {{cvt|2.7|t|ST}} in weight.<ref name=probos_mass>{{cite journal |last1=Larramendi |first1=A. |year=2016 |title=Shoulder height, body mass and shape of proboscideans | journal=Acta Palaeontologica Polonica |volume=61 |issue=3 |pages=537–574 |doi=10.4202/app.00136.2014 |doi-access=free}}</ref><ref name=Sukumar>{{cite journal | last1=Sukumar |first1 =R. |last2=Joshi |first2=N.V. |last3=Krishnamurthy |first3=V. |year=1988 |title=Growth in the Asian elephant |doi=10.1007/BF03179558 | journal=Proceedings: Animal Sciences |volume=97 |issue=6|pages=561–571 |s2cid=84871322}}</ref><ref name=Kurt>{{cite journal |author1=Kurt, F. |author2=Kumarasinghe, J.C. |year=1998 |title=Remarks on body growth and phenotypes in Asian elephant ''Elephas maximus'' |journal=Acta Theriologica |volume=5 |issue=Supplement |pages=135–153 |doi=10.4098/AT.arch.98-39 |doi-access=free}}</ref> Sexual dimorphism in body size is relatively less pronounced in Asian elephants than in African bush elephants; with bulls averaging 15% and 23% taller in the former and latter respectively.<ref name=probos_mass/> Length of body and head including trunk is {{cvt|5.5|-|6.5|m}} with the tail being {{cvt|1.2|-|1.5|m}} long.<ref name=Shoshani82/> The largest bull elephant ever recorded was shot by the [[Maharajah]] of Susang in the Garo Hills of [[Assam, India]], in 1924, it weighed an estimated {{cvt|7|t|ST}}, stood {{cvt|3.43|m}} tall at the shoulder and was {{cvt|8.06|m}} long from head to tail.<ref name=probos_mass/><ref>{{cite journal |last1=Pillai |first1=N.G. |year=1941 |title=On the height and age of an elephant |journal=Journal of the Bombay Natural History Society |volume=42 |pages=927–928 |url=https://archive.org/details/biostor-150258}}</ref><ref name=Wood>{{cite book |author=Wood, G. |title=The Guinness Book of Animal Facts and Feats |year=1983 |isbn=978-0-85112-235-9 |publisher=Guinness Superlatives |place=Enfield, Middlesex | page=17 |url=https://archive.org/details/guinnessbookofan00wood}}</ref> The [[Raja Gaj]] elephant in [[Bardia National Park]] was estimated to be {{cvt|11.3|ft|order=flip}} tall at the shoulder and one of the biggest Asian bull elephants.<ref>{{cite journal |author=Furaha tenVelde, P. |year=1997 |title=The wild elephants of the Royal Bardia National Park, Nepal |journal=Gajah: Journal of the SSC Asian Elephant Specialist Group |issue=17 |pages=41–44 |url=http://www.asesg.org/PDFfiles/Gajah/17-41-tenVelde.pdf}}</ref> There are reports of larger individuals as tall as {{cvt|3.66|m}} and {{cvt|2.92|m}}, and {{cvt|7.99|m}} long from head to tail.<ref name=lydekker>{{cite book |author=Lydekker, R. |year=1894 |title=The Royal Natural History |volume=2 |url=https://archive.org/stream/royalnaturalhist02lydeuoft#page/542/mode/2up |publisher=Frederick Warne and Co. |location=London |pages=522–530}}</ref>


== Distribution and habitat ==
== Distribution and habitat ==
{{multiple image |direction=vertical |image1=An elephant herd at Jim Corbett National Park.jpg |caption1=An elephant herd in the grasslands of [[Jim Corbett National Park]] |image2=Asiatic Elephant Kabini.jpg |caption2=Asian elephant grazing on the banks of Kabini River, Nagarhole National Park |image3=Лежачий азиатский слон. Таиланд.jpg |caption3=Asian elephant in Thailand |image4=Asian elephant walking in Tad Lo river at golden hour, Bolaven Plateau, Laos.jpg |caption4=Asian elephant walking in Tad Lo river, Salavan Province, [[Laos]].}}
Asian elephants are distributed throughout the [[Indian subcontinent]] and [[Southeast Asia]], from [[India]] in the west, to [[Borneo]] in the east, and [[Nepal]] in the north, to [[Sumatra]] in the south.<ref name=MSOF/> They inhabit grasslands, [[tropical evergreen forest]]s, semi-evergreen forests, moist [[deciduous forest]]s, dry deciduous forests and dry thorn forests, in addition to cultivated and secondary forests and scrublands. Over this range of habitat types elephants occur from sea level to over {{cvt|3000|m}}. In the eastern [[Himalaya]] in northeast India, they regularly move up above {{cvt|3000|m}} in summer at a few sites.<ref name=Choudhury99>{{cite journal |last1=Choudhury |first1=A. U. |year=1999 |title=Status and conservation of the Asian elephant ''Elephas maximus'' in north-eastern India |journal=Mammal Review |volume=29 |issue=3 |pages=141–173 |doi=10.1046/j.1365-2907.1999.00045.x|bibcode=1999MamRv..29..141C }}</ref>


Asian elephants inhabit grasslands, [[tropical evergreen forest]]s, semi-evergreen forests, moist [[deciduous forest]]s, dry deciduous forests and dry thorn forests, in addition to cultivated and secondary forests and scrublands. Over this range of habitat types elephants occur from sea level to over {{convert|3000|m|ft|abbr=on}}. In the eastern [[Himalaya]] in northeast India, they regularly move up above {{convert|3000|m|ft|abbr=on}} in summer at a few sites.<ref name=Choudhury99>{{cite journal |last1=Choudhury |first1=A. U. |year=1999 |title=Status and Conservation of the Asian elephant ''Elephas maximus'' in north-eastern India |journal=Mammal Review |volume=29 |issue=3 |pages=141–173 |doi=10.1046/j.1365-2907.1999.00045.x}}</ref>
In [[Bangladesh]], some isolated populations survived in the south-east [[Chittagong Hills]] in the early 1990s.<ref name=sukumar93>{{cite book |author=Sukumar, R. |year=1993 |url=https://books.google.com/books?id=95MoRwdQlcYC |title=The Asian Elephant: Ecology and Management |edition=Second |publisher=Cambridge University Press |location=Cambridge |isbn=978-0-521-43758-5 |access-date=15 December 2015 |archive-date=17 March 2024 |archive-url=https://web.archive.org/web/20240317064803/https://books.google.com/books?id=95MoRwdQlcYC |url-status=live |page=18 }}</ref> In [[Malaysia]]'s northern Johor and Terengganu National Park, two Asian elephants tracked using satellite tracking technology spent most of their time in secondary or "logged-over forest"; they travelled 75% of their time in an area less than {{cvt|1.5|km}} away from a water source.<ref>{{cite journal |last1=Aini |first1=S. |last2=Sood |first2=A. M. |last3=Saaban |first3=S. |title=Analysing elephant habitat parameters using GIS, remote sensing and analytic hierarchy process in Peninsular Malaysia |journal=Pertanika Journal of Science & Technology |volume=23 |issue=1 |pages=37–50 |url=http://www.pertanika.upm.edu.my/pjst/browse/regular-issue?article=JST-0466-2013 |access-date=17 May 2023 |archive-date=17 May 2023 |archive-url=https://web.archive.org/web/20230517010533/http://www.pertanika.upm.edu.my/pjst/browse/regular-issue?article=JST-0466-2013 |url-status=live}}</ref> In [[China]], the Asian elephant survives only in the prefectures of [[Xishuangbanna]], [[Simao District|Simao]] and [[Lincang]] of southern [[Yunnan]]. {{As of|2020}}, the estimated population was around 300 individuals.<ref name="ECNS"/>


In [[China]], the Asian elephant survives only in the prefectures of [[Xishuangbanna]], [[Simao District|Simao]], and [[Lincang]] of southern [[Yunnan]]. Estimated population is around 300 individual (in 2020).<ref name=ECNS />
As of 2017, the estimated wild population in India account for nearly three-fourths of the extant population, at 27,312 individuals.<ref>{{cite news |url=https://www.thehindu.com/news/national/kerala/india-has-27312-elephants-census-shows/article19504528.ece |title=India has 27,312 elephants, census shows |newspaper=[[The Hindu]] |date=16 August 2017 |access-date=1 December 2023 |archive-date=3 December 2023 |archive-url=https://web.archive.org/web/20231203094419/https://www.thehindu.com/news/national/kerala/india-has-27312-elephants-census-shows/article19504528.ece |url-status=live }}</ref> In 2019, the Asian elephant population in India increased to an estimated 27,000–29,000 individuals.<ref>{{Cite journal |last1=Srinivasaiah |first1=Nishant M. |last2=Vaidyanathan |first2=Srinivas |last3=Sukumar |first3=Raman |last4=Sinha |first4=Anindya |date=2019 |title=Elephants on the Move: Implications for Human–Elephant Interaction |journal=India International Centre Quarterly |volume=46 |issue=3/4 |pages=100–113 |jstor=26946286 |issn=0376-9771 }}</ref><ref>{{cite journal |last1=Baskaran |first1=N. |last2=Varma |first2=S. |last3=Sar |first3=C.K. |last4=Sukumar |first4=R. |title=Current status of elephants in India |date=2011 |url=https://www.academia.edu/55985574 |pages=47–54 |volume=35 |journal=Gajah |access-date=29 March 2024 |archive-date=21 May 2024 |archive-url=https://web.archive.org/web/20240521144712/https://www.academia.edu/55985574 |url-status=live }}</ref> {{As of|2019}}, the global wild population was estimated at 48,323–51,680 individuals.<ref name="Menon 2019">{{cite journal |author=Menon, V. |author2=Tiwari, S. |year=2019 |title=Population status of Asian elephants ''Elephas maximus'' and key threats |journal=International Zoo Yearbook |volume=53 |issue=1 |pages=17–30 |doi=10.1111/izy.12247 |s2cid=209571148 }}</ref>
 
In [[Bangladesh]], some isolated populations survive in the south-east [[Chittagong Hills]].<ref name=sukumar93/> A herd of 20–25 wild elephants was reported as being present in the [[Garo Hills]] of [[Mymensingh]] in the late-1990s, being detached from a big herd in the Peack hills of India and prevented from returning by fences put up in the meantime by the Indian border security force. The herd was estimated at about 60 individuals in 2014.<ref>{{cite web|url=http://www.dhakatribune.com/bangladesh/2014/apr/28/wild-elephants-nightmare-sherpur-villagers|title=Wild elephants a nightmare for Sherpur villagers {{!}} Dhaka Tribune |website=www.dhakatribune.com|access-date=22 May 2016|url-status=dead|archive-url=https://web.archive.org/web/20160623163935/http://www.dhakatribune.com/bangladesh/2014/apr/28/wild-elephants-nightmare-sherpur-villagers|archive-date=23 June 2016}}</ref>
 
In [[Malaysia]]'s northern Johor and Terengganu National Park, two Asian elephants were tracked using satellite tracking technology. They spent most of their time in the secondary or "logged-over forest" and travelled 75% of their time in an area of less than {{cvt|1.5|km}} away from a water source.<ref>{{Cite journal |last=Aini |first=S. |last2=Sood |first2=A. M. |last3=Saaban |first3=S. |title=Analysing elephant habitat parameters using GIS, remote sensing and analytic hierarchy process in Peninsular Malaysia |journal=Pertanika Journal of Science & Technology |volume=23 |issue=1 |pages=37–50 |url=http://www.pertanika.upm.edu.my/pjst/browse/regular-issue?article=JST-0466-2013}}</ref>


==Ecology and behaviour==
==Ecology and behaviour==
[[File:Baby elephants at the Elephant Conservation Center (Laos).jpg|thumb|A 5-month-old calf and its 17-month-old cousin in a sanctuary in Laos]]
[[File:Wild_elephants,_Munnar.jpg|thumb|Asian elephants are [[megaherbivores]], consuming large amount of plant matter. Pictured are grazing elephants from [[Kerala]], India]]
Asian elephants are [[crepuscular]].<ref name="Shoshani82"/> They are classified as [[megaherbivore]]s and consume up to {{convert|150|kg|lb|abbr=on}} of plant matter per day.<ref>{{cite journal |last1=Samansiri |first1=K. A. P. |last2=Weerakoon |first2=D. K. |year=2007 |url=http://www.asesg.org/PDFfiles/Gajah/27-27-Samansiri.pdf |title=Feeding Behaviour of Asian Elephants in the Northwestern Region of Sri Lanka |journal=Gajah |volume=2 |pages=27–34 }}</ref> They are generalist feeders, and are both [[Grazing|grazers]] and [[Browsing (predation)|browsers]]. They are known to feed on at least 112 different plant species, most commonly of the order [[Malvales]], as well as the [[Leguminosae|legume]], [[Palmae|palm]], [[Cyperaceae|sedge]] and [[Graminae|true grass]] families.<ref>{{cite journal|last=Sukumar |first=R. |year=1990 |url=http://www.asiannature.org/pdf_resources/JournalofTropicalEcologyB1989.pdf |title=Ecology of the Asian Elephant in southern India. II. Feeding habits and crop raiding patterns |journal=Journal of Tropical Ecology |volume=6 |pages=33–53 |doi=10.1017/S0266467400004004 |s2cid=85129439 |url-status=dead |archive-url=https://web.archive.org/web/20071012123045/http://www.asiannature.org/pdf_resources/JournalofTropicalEcologyB1989.pdf |archive-date=12 October 2007 }}</ref> They browse more in the dry season with bark constituting a major part of their diet in the cool part of that season.<ref>{{cite journal |last1=Pradhan |first1=N. M. B. |last2=Wegge |first2=P. |last3=Moe |first3=S. R. |last4=Shrestha |first4=A. K. |year=2008 |title=Feeding ecology of two endangered sympatric megaherbivores: Asian elephant ''Elephas maximus'' and greater one-horned rhinoceros ''Rhinoceros unicornis'' in lowland Nepal |journal=Wildlife Biology |volume=14 |pages=147–154 |doi=10.2981/0909-6396(2008)14[147:FEOTES]2.0.CO;2 |s2cid=85964847 |url=http://doc.rero.ch/record/16072/files/PAL_E3863.pdf }}</ref> They drink at least once a day and are never far from a permanent source of fresh water.<ref name="Shoshani82"/> They need 80–200 litres of water a day and use even more for bathing. At times, they scrape the soil for clay or minerals.
[[File:Kui_Buri_National_Park_(Prachuap_Khiri_Khan_Province,_Thailand.jpg|thumb|Asian elephant cows and calves live in closely knit groups. Pictured is group of elephants in [[Thailand]]]]
Asian elephants are [[crepuscular]].<ref name="Shoshani82"/> They are classified as [[megaherbivore]]s and consume up to {{convert|150|kg|lb|abbr=on}} of plant matter per day.<ref>{{cite journal |last1=Samansiri |first1=K. A. P. |last2=Weerakoon |first2=D. K. |year=2007 |url=http://www.asesg.org/PDFfiles/Gajah/27-27-Samansiri.pdf |title=Feeding Behaviour of Asian Elephants in the Northwestern Region of Sri Lanka |journal=Gajah |volume=2 |pages=27–34 |access-date=18 October 2011 |archive-date=18 November 2016 |archive-url=https://web.archive.org/web/20161118170121/http://www.asesg.org/PDFfiles/Gajah/27-27-Samansiri.pdf |url-status=live }}</ref> Around 50 to 75% of the day is devoted to eating.<ref>{{cite journal |last=Sukumar |first=R. |date=July 2006 |title=A brief review of the status, distribution and biology of wild Asian elephants Elephas maximus |url=https://zslpublications.onlinelibrary.wiley.com/doi/10.1111/j.1748-1090.2006.00001.x |journal=International Zoo Yearbook |language=en |volume=40 |issue=1 |pages=1–8 |doi=10.1111/j.1748-1090.2006.00001.x |issn=0074-9664 |access-date=18 March 2024 |archive-date=18 March 2024 |archive-url=https://web.archive.org/web/20240318182118/https://zslpublications.onlinelibrary.wiley.com/doi/10.1111/j.1748-1090.2006.00001.x |url-status=live |url-access=subscription }}</ref> They are generalist feeders, and are both [[Grazing|grazers]] and [[Browsing (predation)|browsers]]. They are known to feed on at least 112 different plant species, most commonly of the order [[Malvales]], as well as the [[Leguminosae|legume]], [[Palmae|palm]], [[Cyperaceae|sedge]] and [[Graminae|true grass]] families.<ref>{{cite journal|last=Sukumar |first=R. |year=1990 |url=http://www.asiannature.org/pdf_resources/JournalofTropicalEcologyB1989.pdf |title=Ecology of the Asian Elephant in southern India. II. Feeding habits and crop raiding patterns |journal=Journal of Tropical Ecology |volume=6 |pages=33–53 |doi=10.1017/S0266467400004004 |s2cid=85129439 |archive-url=https://web.archive.org/web/20071012123045/http://www.asiannature.org/pdf_resources/JournalofTropicalEcologyB1989.pdf |archive-date=12 October 2007 }}</ref> They browse more in the dry season with bark constituting a major part of their diet in the cool part of that season.<ref>{{cite journal |last1=Pradhan |first1=N. M. B. |last2=Wegge |first2=P. |last3=Moe |first3=S. R. |last4=Shrestha |first4=A. K. |year=2008 |title=Feeding ecology of two endangered sympatric megaherbivores: Asian elephant ''Elephas maximus'' and greater one-horned rhinoceros ''Rhinoceros unicornis'' in lowland Nepal |journal=Wildlife Biology |volume=14 |pages=147–154 |doi=10.2981/0909-6396(2008)14[147:FEOTES]2.0.CO;2 |s2cid=85964847 |url=http://doc.rero.ch/record/16072/files/PAL_E3863.pdf |access-date=3 January 2023 |archive-date=13 March 2023 |archive-url=https://web.archive.org/web/20230313032933/https://doc.rero.ch/record/16072/files/PAL_E3863.pdf |url-status=live }}</ref> They drink at least once a day and are never far from a permanent source of fresh water.<ref name="Shoshani82"/> They need 80–200 litres of water a day and use even more for bathing. At times, they scrape the soil for clay or minerals.<ref>{{cite journal |last1=Sach |first1=Fiona |last2=Dierenfeld |first2=Ellen S. |last3=Langley-Evans |first3=Simon C. |last4=Hamilton |first4=Elliott |last5=Murray Lark |first5=R. |last6=Yon |first6=Lisa |last7=Watts |first7=Michael J. |date=2020-05-15 |title=Potential bio-indicators for assessment of mineral status in elephants |journal=Scientific Reports |language=en |volume=10 |issue=1 |page=8032 |doi=10.1038/s41598-020-64780-0 |pmid=32415129 |bibcode=2020NatSR..10.8032S |issn=2045-2322|pmc=7229182 }}</ref><ref>{{cite journal |last1=Singh |first1=A. P. |last2=Sharma |first2=Ramesh C. |date=2001-09-24 |title=Conflicts between linear developments and Asian elephants in sub-Himalayan zone of Uttranchal |url=https://escholarship.org/uc/item/7c7135nq |journal=Road Ecology Center |language=en |access-date=18 March 2024 |archive-date=18 March 2024 |archive-url=https://web.archive.org/web/20240318055715/https://escholarship.org/uc/item/7c7135nq |url-status=live }}</ref>


Cows and calves move about together as groups, while bulls disperse from their mothers upon reaching adolescence. Bulls are solitary or form temporary "bachelor groups".<ref name="McKay1973">{{cite journal |last=McKay |first=G. M. |s2cid=128585445 |year=1973 |title=Behavior and ecology of the Asiatic elephant in southeastern Ceylon |journal=Smithsonian Contributions to Zoology |volume=125 |issue= 125|pages=1–113 |doi=10.5479/si.00810282.125 }}</ref> Cow-calf units generally tend to be small, typically consisting of three adults (most likely related females) and their offspring.<ref>{{cite journal |last1=Fernando |first1=P. |last2=Lande |first2=R. |title=Molecular genetic and behavioral analysis of social organization in the Asian elephant (''Elephas maximus'') |journal=Behav Ecol Sociobiol |year=2000 |volume=48 |issue=1 |pages=84–91 |doi=10.1007/s002650000218 |s2cid=33707844 }}</ref> Larger groups of as many as 15 adult females have also been recorded.<ref name="deSilva1">{{cite journal |last1=de Silva |first1=S. |last2=Wittemyer |first2=G. |year=2012 |title=A Comparison of Social Organization in Asian Elephants and African Savannah Elephants |journal=International Journal of Primatology |volume=  33|issue= 5|pages= 1125–1141|doi=10.1007/s10764-011-9564-1 |s2cid=17209753 }}</ref> Seasonal aggregations of 17 individuals including calves and young adults have been observed in Sri Lanka's [[Uda Walawe National Park]]. Until recently, Asian elephants, like African elephants, were thought to be under the leadership of older adult females, or [[matriarchy|matriarchs]]. It is now recognized that cows form extensive and very fluid social networks, with varying degrees of associations between individuals.<ref name="deSilva2">{{cite journal |last1=de Silva |first1=S. |last2=Ranjeewa |first2=A. D. G. |last3=Kryazhimskiy |first3=S. |year=2011 |title=The dynamics of social networks among female Asian elephants |journal=BMC Ecology |volume=11|page=17 |doi=10.1186/1472-6785-11-17|pmid=21794147 |pmc=3199741 }}</ref> Social ties generally tend to be weaker than in African elephants.<ref name="deSilva1"/>
Cows and calves move about together as groups, while bulls disperse from their mothers upon reaching adolescence. Bulls are solitary or form temporary "bachelor groups".<ref name="McKay1973">{{cite journal |last=McKay |first=G. M. |s2cid=128585445 |year=1973 |title=Behavior and ecology of the Asiatic elephant in southeastern Ceylon |journal=Smithsonian Contributions to Zoology |volume=125 |issue= 125|pages=1–113 |doi=10.5479/si.00810282.125 }}</ref> Cow-calf units generally tend to be small, typically consisting of three adults (most likely related females) and their offspring.<ref>{{cite journal |last1=Fernando |first1=P. |last2=Lande |first2=R. |title=Molecular genetic and behavioral analysis of social organization in the Asian elephant (''Elephas maximus'') |journal=Behav Ecol Sociobiol |year=2000 |volume=48 |issue=1 |pages=84–91 |doi=10.1007/s002650000218 |bibcode=2000BEcoS..48...84F |s2cid=33707844 }}</ref> Larger groups of as many as 15 adult females have also been recorded.<ref name="deSilva1">{{cite journal |last1=de Silva |first1=S. |last2=Wittemyer |first2=G. |year=2012 |title=A Comparison of Social Organization in Asian Elephants and African Savannah Elephants |journal=International Journal of Primatology |volume=  33|issue= 5|pages= 1125–1141|doi=10.1007/s10764-011-9564-1 |s2cid=17209753 }}</ref> Seasonal aggregations of 17 individuals including calves and young adults have been observed in Sri Lanka's [[Uda Walawe National Park]]. Until recently, Asian elephants, like African elephants, were thought to be under the leadership of older adult females, or [[matriarchy|matriarchs]]. It is now recognized that cows form extensive and very fluid social networks, with varying degrees of associations between individuals.<ref name="deSilva2">{{cite journal |last1=de Silva |first1=S. |last2=Ranjeewa |first2=A. D. G. |last3=Kryazhimskiy |first3=S. |year=2011 |title=The dynamics of social networks among female Asian elephants |journal=BMC Ecology |volume=11|issue=1 |page=17 |doi=10.1186/1472-6785-11-17|pmid=21794147 |pmc=3199741 |doi-access=free |bibcode=2011BMCE...11...17D }}</ref> Social ties generally tend to be weaker than in African bush elephants.<ref name="deSilva1"/> Unlike African elephants, which rarely use their forefeet for anything other than digging or scraping soil, Asian elephants are more agile at using their feet in conjunction with the trunk for manipulating objects. They can sometimes be known for their violent behavior.<ref name="Clutton-Brock"/>


Unlike African elephants, which rarely use their forefeet for anything other than digging or scraping soil, Asian elephants are more agile at using their feet in conjunction with the trunk for manipulating objects. They can sometimes be known for their violent behavior.<ref name="Clutton-Brock"/>
[[File:Re-union of guardians of the jungle.jpg|thumb|Elephant reunion in East Nepal]]
Asian elephants are recorded to make three basic sounds: growls, squeaks and snorts. Growls in their basic form are used for short distance communication. During mild arousal, growls resonate in the trunk and become [[Rumble (noise)|rumbles]] while for long-distance communication, they escalate into roars. Low-frequency growls are [[infrasonic]] and made in many contexts. Squeaks come in two forms: chirpings and trumpets. Chirping consists of multiple short squeaks and signals conflict and nervousness. Trumpets are lengthened squeaks with increased loudness and are produced during extreme arousal. Snorts signal changes in activity and increase in loudness during mild or strong arousal. During the latter case, when an elephant bounces the tip of the trunk, it creates booms which serve as threat displays.<ref name=Sukumar2003>{{cite book |author=Sukumar, R. |year=2003 |title=The Living Elephants: Evolutionary Ecology, Behavior, and Conservation |publisher=Oxford University Press |location=Oxford |url=https://archive.org/details/livingelephantse00suku_0 |url-access= registration |isbn=978-0-19-510778-4 |page=142 }}</ref> Elephants can distinguish low-amplitude sounds.<ref>{{cite journal |last1=Heffner |first1=R. |last2=Heffner |first2=H. |year=1980 |title=Hearing in the elephant (''Elephas maximus'') |journal=[[Science (journal)|Science]] |url=https://www.researchgate.net/publication/15830977 |pmid=7367876 |volume=208 |issue=4443 |pages=518–520 |doi=10.1126/science.7367876 |bibcode=1980Sci...208..518H |access-date=27 September 2013 |archive-date=17 March 2024 |archive-url=https://web.archive.org/web/20240317064810/https://www.researchgate.net/publication/15830977_Hearing_in_the_Elephant_Elephas_maximus |url-status=live }}</ref>


Asian elephants are recorded to make three basic sounds: growls, squeaks and snorts. Growls in their basic form are used for short distance communication. During mild arousal, growls resonate in the trunk and become [[Rumble (noise)|rumbles]] while for long-distance communication, they escalate into roars. Low-frequency growls are [[infrasonic]] and made in many contexts. Squeaks come in two forms; chirpings and trumpets. Chirping consists of multiple short squeaks and signal conflict and nervousness. Trumpets are lengthened squeaks with increased loudness and produced during extreme arousal. Snorts signal changes in activity and increase in loudness during mild or strong arousal. During the latter case, when an elephant bounces the tip of the trunk it creates booms which serve as threat displays.<ref name=Sukumar2003/>{{rp|142}} Elephants are able to distinguish low-amplitude sounds.<ref>{{cite journal |last1=Heffner |first1=R. |last2=Heffner |first2=H. |year=1980 |title=Hearing in the elephant (''Elephas maximus'') |journal=[[Science (journal)|Science]] |url=https://www.researchgate.net/publication/15830977|pmid=7367876|volume=208 |issue=4443 |pages=518–520 |doi=10.1126/science.7367876 |bibcode=1980Sci...208..518H }}</ref>
Rarely, [[Bengal tiger|tiger]]s have been recorded attacking and killing calves, especially if the calves become separated from their mothers, stranded from their herd, or orphaned. Adults are largely invulnerable to natural predation. There is a singular anecdotal case of a mother Asian elephant allegedly being killed alongside her calf; however, this account is contestable.<ref>{{cite journal|author1=Karanth, K. U.|author2=Nichols, J. D.|name-list-style=amp|year=1998|url=http://repository.ias.ac.in/89442/1/3-P.pdf|title=Estimation of tiger densities in India using photographic captures and recaptures|journal=Ecology|volume=79|issue=8|pages=2852–2862|doi=10.1890/0012-9658(1998)079[2852:EOTDII]2.0.CO;2|jstor=176521|access-date=7 December 2012|archive-url=https://web.archive.org/web/20170809055944/http://repository.ias.ac.in/89442/1/3-P.pdf|archive-date=9 August 2017}}</ref><ref>{{cite news |year=2006 |url=http://www.elephant-news.com/index.php?id=1613 |title=Tiger kills mother, baby elephant |work=Elephant News |archive-url=https://web.archive.org/web/20140714144420/http://www.elephant-news.com/index.php?id=1613 |archive-date=14 July 2014  }}</ref> In 2011 and 2014, two instances were recorded of tigers successfully killing adult elephants; one by a single tiger in [[Jim Corbett National Park]] on a 20-year-old young adult elephant cow, and another on a 28-year-old sick adult bull in [[Kaziranga National Park]] further east, which was taken down and eaten by several tigers hunting cooperatively.<ref>{{cite web|title=Tiger kills elephant in Corbett Reserve|url=https://www.thehindu.com/news/national/other-states/Tiger-kills-elephant-in-Corbett-Reserve/article15536997.ece|work=The Hindu|date=January 29, 2011|access-date=8 February 2024|archive-date=8 February 2024|archive-url=https://web.archive.org/web/20240208141952/https://www.thehindu.com/news/national/other-states/Tiger-kills-elephant-in-Corbett-Reserve/article15536997.ece|url-status=live}}</ref><ref>{{cite web|title=Kaziranga elephant killed in tiger attack|url=https://timesofindia.indiatimes.com/home/environment/flora-fauna/Kaziranga-elephant-killed-in-tiger-attack/articleshow/44902721.cms|work=The Times of India|date=October 22, 2014|access-date=8 February 2024|archive-date=8 February 2024|archive-url=https://web.archive.org/web/20240208141952/https://timesofindia.indiatimes.com/home/environment/flora-fauna/Kaziranga-elephant-killed-in-tiger-attack/articleshow/44902721.cms|url-status=live}}</ref> Elephants appear to distinguish between the growls of larger predators like tigers and smaller predators like [[leopard]]s; they react to leopards less fearfully and more aggressively.<ref>{{cite journal|author1=Thuppil, V.|author2=Coss, R. G.|year=2013|title=Wild Asian elephants distinguish aggressive tiger and leopard growls according to perceived danger|journal=Biology Letters|volume=9|issue=5|article-number=20130518|doi=10.1098/rsbl.2013.0518|pmid=24026347|pmc=3971691|url=http://mon.univ-montp2.fr/claroline/backends/download.php?url=L1REXzE3LTEwLTIwMTMvVGh1cHBpbF9ldF9hbF8yMDEzLnBkZg%3D%3D&cidReset=true&cidReq=UMBGAE339|archive-url=https://web.archive.org/web/20140714225616/http://mon.univ-montp2.fr/claroline/backends/download.php?url=L1REXzE3LTEwLTIwMTMvVGh1cHBpbF9ldF9hbF8yMDEzLnBkZg%3D%3D&cidReset=true&cidReq=UMBGAE339|archive-date=14 July 2014}}</ref>
 
Rarely, [[Bengal tiger|tiger]]s have been recorded attacking and killing calves, especially if the calves become separated from their mothers, stranded from their herd, or orphaned. Adults are largely invulnerable to natural predation. There is a singular anecdotal case of a mother Asian elephant allegedly being killed alongside her calf; however, this account is contestable.<ref>{{cite journal|author1=Karanth, K. U.|author2=Nichols, J. D.|name-list-style=amp|year=1998|url=http://repository.ias.ac.in/89442/1/3-P.pdf|title=Estimation of tiger densities in India using photographic captures and recaptures|journal=Ecology|volume=79|issue=8|pages=2852–2862|doi=10.1890/0012-9658(1998)079[2852:EOTDII]2.0.CO;2|jstor=176521|access-date=7 December 2012|archive-url=https://web.archive.org/web/20170809055944/http://repository.ias.ac.in/89442/1/3-P.pdf|archive-date=9 August 2017|url-status=dead}}</ref><ref>{{cite news |year=2006 |url=http://www.elephant-news.com/index.php?id=1613 |title=Tiger kills mother, baby elephant |work=Elephant News |url-status=dead |archive-url=https://web.archive.org/web/20140714144420/http://www.elephant-news.com/index.php?id=1613 |archive-date=14 July 2014  }}</ref> In 2011 and 2014, two instances were recorded of tigers successfully killing adult elephants; one by a single tiger in [[Jim Corbett National Park]] on a 20-year-old elephant, and another on a 28-year-old elephant in [[Kaziranga National Park]] further east, which was taken down and eaten by several tigers hunting cooperatively.<ref>{{cite book|last=Huckelbridge|first=Dane|title=No Beast So Fierce|date=2019|publisher=HarperCollins Publishers|location=New York, New York|isbn=9780062678843|pages=19–20}}</ref> Elephants appear to distinguish between the growls of larger predators like tigers and smaller predators like [[leopard]]s; they react to leopards less fearfully and more aggressively.<ref>{{cite journal|author1=Thuppil, V.|author2=Coss, R. G.|year=2013|title=Wild Asian elephants distinguish aggressive tiger and leopard growls according to perceived danger|journal=Biology Letters|volume=9|issue=5|pages=20130518|doi=10.1098/rsbl.2013.0518|pmid=24026347|pmc=3971691|url=http://mon.univ-montp2.fr/claroline/backends/download.php?url=L1REXzE3LTEwLTIwMTMvVGh1cHBpbF9ldF9hbF8yMDEzLnBkZg%3D%3D&cidReset=true&cidReq=UMBGAE339|url-status=dead|archive-url=https://web.archive.org/web/20140714225616/http://mon.univ-montp2.fr/claroline/backends/download.php?url=L1REXzE3LTEwLTIwMTMvVGh1cHBpbF9ldF9hbF8yMDEzLnBkZg%3D%3D&cidReset=true&cidReq=UMBGAE339|archive-date=14 July 2014|df=dmy-all}}</ref>


=== Reproduction ===
=== Reproduction ===
{{See also|Elephant#Mating}}Reproduction in Asian elephants can be attributed to the production and perception of signaling compounds called [[pheromone]]s.<ref name=":5">{{Cite journal |last=Rasmussen |first=L. E. L. |date=1999-06-01 |title=Evolution of chemical signals in the Asian elephant,Elephas maximus: behavioural and ecological influences |url=https://doi.org/10.1007/BF02941206 |journal=Journal of Biosciences |language=en |volume=24 |issue=2 |pages=241–251 |doi=10.1007/BF02941206 |s2cid=37477741 |issn=0973-7138}}</ref> These signals are transmitted through various bodily fluids. They are commonly released in urine but in males they are also found in special secretions from the temporal glands.<ref name=":5" /> Once integrated and perceived, these signals provide the receiver with information about the reproductive status of the sender. If both parties are ready to breed, reproductive ritualic behavior occurs and the process of sexual reproduction proceeds.<ref name=":33">{{Cite journal |last1=Schulte |first1=Bruce A. |last2=Bagley |first2=Kathryn |last3=Correll |first3=Maureen |last4=Gray |first4=Amy |last5=Heineman |first5=Sarah M. |last6=Loizi |first6=Helen |last7=Malament |first7=Michelle |last8=Scott |first8=Nancy L. |last9=Slade |first9=Barbara E. |last10=Stanley |first10=Lauren |last11=Goodwin |first11=Thomas E. |last12=Rasmussen |first12=L. E. L. |date=2005 |editor-last=Mason |editor-first=Robert T. |editor2-last=LeMaster |editor2-first=Michael P. |editor3-last=Müller-Schwarze |editor3-first=Dietland |title=Assessing chemical communication in elephants |url=https://link.springer.com/chapter/10.1007/0-387-25160-X_18 |journal=Chemical Signals in Vertebrates 10 |language=en |location=Boston, MA |publisher=Springer US |pages=140–151 |doi=10.1007/0-387-25160-X_18 |isbn=978-0-387-25160-8}}</ref>[[File:Two-Elephants.JPG|thumb|Indian elephants in the [[Coimbatore district|Coimbatore]] Forests, [[Tamil Nadu]]]]
{{See also|Elephant#Mating}}
Bulls will fight one another to get access to [[wikt:oestrous|oestrus]] cows. Strong fights over access to females are extremely rare. Bulls reach sexual maturity around the age of 12–15. Between the age of 10 and 20 years, bulls undergo an annual phenomenon known as "[[musth]]". This is a period where the [[testosterone]] level is up to 100 times greater than non-musth periods, and they become aggressive. Secretions containing [[pheromones]] occur during this period, from the paired temporal glands located on the head between the lateral edge of the eye and the base of the ear.<ref>{{cite journal |last1=Jainudeen |first1=M. R. |last2=McKay |first2=G. M. |last3=Eisenberg |first3=J. F. |year=1972 |title=Observation on musth in the domesticated Asiatic elephant (''Elephas maximus'') |journal=Mammalia |volume=36 |issue=2 |pages=247–261 |doi=10.1515/mamm.1972.36.2.247|s2cid=84275661 }}</ref> The aggressive behaviors observed during musth can be attributed to varying amounts of frontalin (1,5-dimethyl-6,8-dioxabicyclo[3.2.1]octane) throughout the maturation process of bulls.<ref name=":12">{{Cite journal |last=Rasmussen |first=L.E.L |date=June 1, 2003 |title=Frontalin: a Chemical Message of Musth in Asian Elephants (elephas maximus) |url=https://academic.oup.com/chemse/article/28/5/433/349666 |journal=Chemical Senses |volume=28 |issue=5 |pages=433–446|doi=10.1093/chemse/28.5.433 |pmid=12826539 |doi-access=free }}</ref> Frontalin is a [[pheromone]] that was first isolated in bark beetles but can also be produced in the bulls of both Asian and African Elephants.The compound can be excreted through urine as well as through the temporal glands of the bull allowing signaling to occur.<ref name=":12"/> During musth, increased concentrations of frontalin in the bull's urine communicate the reproductive status of the bull to female elephants.<ref name=":12"/>
Reproduction in Asian elephants can be attributed to the production and perception of signaling compounds called [[pheromone]]s. These signals are transmitted through various bodily fluids. They are commonly released in urine but in males they are also found in special secretions from the [[Anatomical terms of location#temporal|temporal glands]].<ref>{{cite journal |last=Rasmussen |first=L. E. L. |date=1999-06-01 |title=Evolution of chemical signals in the Asian elephant,Elephas maximus: behavioural and ecological influences |journal=Journal of Biosciences |volume=24 |issue=2 |pages=241–251 |doi=10.1007/BF02941206 |s2cid=37477741 |issn=0973-7138 }}</ref> Once integrated and perceived, these signals provide the receiver with information about the reproductive status of the sender. If both parties are ready to breed, reproductive ritualic behavior occurs and the process of sexual reproduction proceeds.<ref name="Schulte">{{cite journal |last1=Schulte |first1=Bruce A. |last2=Bagley |first2=Kathryn |last3=Correll |first3=Maureen |last4=Gray |first4=Amy |last5=Heineman |first5=Sarah M. |last6=Loizi |first6=Helen |last7=Malament |first7=Michelle |last8=Scott |first8=Nancy L. |last9=Slade |first9=Barbara E. |last10=Stanley |first10=Lauren |last11=Goodwin |first11=Thomas E. |last12=Rasmussen |first12=L. E. L. |date=2005 |editor-last=Mason |editor-first=Robert T. |editor2-last=LeMaster |editor2-first=Michael P. |editor3-last=Müller-Schwarze |editor3-first=Dietland |title=Assessing chemical communication in elephants |url=https://link.springer.com/chapter/10.1007/0-387-25160-X_18 |journal=Chemical Signals in Vertebrates 10 |language=en |location=Boston, MA |publisher=Springer US |pages=140–151 |doi=10.1007/0-387-25160-X_18 |isbn=978-0-387-25160-8 |access-date=27 November 2022 |archive-date=22 November 2022 |archive-url=https://web.archive.org/web/20221122154659/https://link.springer.com/chapter/10.1007/0-387-25160-X_18 |url-status=live |url-access=subscription }}</ref>


Similar to other mammals, hormone secretion in female elephants is regulated by an estrous cycle. This cycle is regulated by surges in Luteinizing Hormone that are observed 3 weeks from each other.<ref name=":02">{{Cite journal |last1=Brown |first1=J.L. |last2=Schmitt |first2=D.L. |last3=Bellem |first3=A. |last4=Graham |first4=L.H. |last5=Lehnhardt |first5=J. |date=1999-11-01 |title=Hormone Secretion in the Asian Elephant (Elephas maximus): Characterizationof Ovulatory and Anovulatory Luteinizing Hormone Surges |journal=Biology of Reproduction |language=en |volume=61 |issue=5 |pages=1294–1299 |doi=10.1095/biolreprod61.5.1294 |pmid=10529277 |issn=0006-3363|doi-access=free }}</ref> This type of estrous cycle has also been observed in African Elephants but not known to affect other mammals. The first surge in Luteinizing Hormone is not followed by the release of an egg from the ovaries.<ref name=":02" /> However, some female elephants still exhibit the expected mating protocols during this surge. Female elephants give ovulatory cues by utilizing sex [[pheromone]]s. A principal component thereof, (Z)-7-dodecen-1-yl acetate, has also been found to be a sex pheromone in numerous species of insects.<ref>{{cite journal |last1=Rasmussen |first1=L. E. L. |last2=Lee |first2=T. D. |last3=Zhang |first3=A. J. |last4=Roelofs |first4=W. L. |last5=Daves |first5=G. D. |year=1997 |title=Purification, identification, concentration and bioactivity of (Z)-7-dodecen-1-yl acetate: sex pheromone of the female Asian elephant, ''Elephas maximus'' |journal=Chemical Senses |volume=22 |issue=4 |pages=417–437 |doi=10.1093/chemse/22.4.417 |pmid=9279465 |doi-access=free}}</ref><ref>{{cite journal |last1=Rasmussen |first1=L. E. L. |last2=Lee |first2=T. D. |last3=Roelofs |first3=W. L. |last4=Zhang |first4=A. J. |last5=Daves |first5=G. D. |year=1996 |title=Insect pheromone in elephants |journal=[[Nature (journal)|Nature]] |volume=379 |issue=6567 |page=684 |bibcode=1996Natur.379..684R |doi=10.1038/379684a0 |pmid=8602213 |doi-access=free |s2cid=4330432}}</ref> In both insects and elephants, this chemical compound is used as an attractant to assist the mating process.<ref name=":2">{{Cite journal |last=Rasmussen |first=L.E.L |date=February 22, 1996 |title=Insect Pheromones in Elephants |url=https://www.nature.com/articles/379684a0.pdf?platform=hootsuite |journal=Nature |volume=379 |issue=6567 |pages=684|doi=10.1038/379684a0 |pmid=8602213 |bibcode=1996Natur.379..684R |s2cid=4330432 }}</ref> In elephants, the chemical is secreted through urination and this aids in the attraction of bulls to mate. Once detected, the chemical stimulates the vomeronasal organ of the bull thus providing information on the maturity of the female.<ref name=":2" />
Bulls will fight one another to get access to [[wikt:oestrous|oestrus]] cows. Strong fights over access to females are extremely rare. Bulls reach sexual maturity around the age of 12–15. Between the ages of 10 and 20 years, bulls undergo an annual phenomenon known as "[[musth]]". This is a period where the [[testosterone]] level is up to 100 times greater than non-musth periods, and they become aggressive. Secretions containing [[pheromones]] occur during this period, from the paired temporal glands located on the head between the lateral edge of the eye and the base of the ear.<ref>{{cite journal |last1=Jainudeen |first1=M. R. |last2=McKay |first2=G. M. |last3=Eisenberg |first3=J. F. |year=1972 |title=Observation on musth in the domesticated Asiatic elephant (''Elephas maximus'') |journal=Mammalia |volume=36 |issue=2 |pages=247–261 |doi=10.1515/mamm.1972.36.2.247|s2cid=84275661 }}</ref> The aggressive behaviors observed during musth can be attributed to varying amounts of [[frontalin]] (1,5-dimethyl-6,8-dioxabicyclo[3.2.1]octane) throughout the maturation process of bulls. Frontalin is a [[pheromone]] that was first isolated in bark beetles but can also be produced in the bulls of both Asian and African Elephants. The compound can be excreted through urine as well as through the temporal glands of the bull, allowing signaling to occur. During musth, increased concentrations of frontalin in the bull's urine communicate the reproductive status of the bull to female elephants.<ref name="Rasmussen">{{cite journal |last=Rasmussen |first=L.E.L |date=June 1, 2003 |title=Frontalin: a Chemical Message of Musth in Asian Elephants (elephas maximus) |url=https://academic.oup.com/chemse/article/28/5/433/349666 |journal=Chemical Senses |volume=28 |issue=5 |pages=433–446 |doi=10.1093/chemse/28.5.433 |pmid=12826539 |doi-access=free |access-date=27 November 2022 |archive-date=3 November 2022 |archive-url=https://web.archive.org/web/20221103232714/https://academic.oup.com/chemse/article/28/5/433/349666 |url-status=live }}</ref>


Reproductive signaling exchange between male and female elephants are transmitted through olfactory cues in bodily fluids.<ref name=":33"/> In males, the increase in frontalin during musth heightens their sensitivity to the (Z)-7-dodecen-1-yl acetate produced by female elephants.<ref name=":12"/> Once perceived by receptors in the trunk, a sequence of ritualistic behaviors follow.<ref name=":33"/> The responses in males vary based on both the stage of development and the temperament of the elephant.<ref name=":33"/> This process of receiving and processing signals through the trunk is referred to as flehmen.<ref name=":43">{{Cite journal |last1=Schulte |first1=Bruce A. |last2=LaDue |first2=Chase A. |date=2021-09-30 |title=The Chemical Ecology of Elephants: 21st Century Additions to Our Understanding and Future Outlooks |journal=Animals |volume=11 |issue=10 |pages=2860 |doi=10.3390/ani11102860 |pmid=34679881 |pmc=8532676 |issn=2076-2615|doi-access=free }}</ref> The difference in body movements give cues to gauge if the male is interested in breeding with the female that produced the secretion.<ref name=":43"/> A bull that is ready to breed will move closer to the urine and in some cases an erection response is elicited. A bull that is not ready to breed will be timid and try to dissociate themselves from the signal.<ref name=":33"/>
Similar to other mammals, hormone secretion in female elephants is regulated by an [[estrous cycle]]. This cycle is regulated by surges in [[Luteinizing hormone]] that are observed three weeks from each other. This type of estrous cycle has also been observed in African Elephants but is not known to affect other mammals. The first surge in Luteinizing hormone is not followed by the release of an egg from the ovaries.<ref>{{cite journal |last1=Brown |first1=J.L. |last2=Schmitt |first2=D.L. |last3=Bellem |first3=A. |last4=Graham |first4=L.H. |last5=Lehnhardt |first5=J. |date=November 1999 |title=Hormone Secretion in the Asian Elephant (Elephas maximus): Characterizationof Ovulatory and Anovulatory Luteinizing Hormone Surges |journal=Biology of Reproduction |language=en |volume=61 |issue=5 |pages=1294–1299 |doi=10.1095/biolreprod61.5.1294 |pmid=10529277 |issn=0006-3363|doi-access=free }}</ref> However, some female elephants still exhibit the expected mating protocols during this surge. Female elephants give ovulatory cues by utilizing sex [[pheromone]]s. A principal component thereof, (Z)-7-dodecen-1-yl acetate, has also been found to be a sex pheromone in numerous species of insects.<ref>{{cite journal |last1=Rasmussen |first1=L. E. L. |last2=Lee |first2=T. D. |last3=Zhang |first3=A. J. |last4=Roelofs |first4=W. L. |last5=Daves |first5=G. D. |year=1997 |title=Purification, identification, concentration and bioactivity of (Z)-7-dodecen-1-yl acetate: sex pheromone of the female Asian elephant, ''Elephas maximus'' |journal=Chemical Senses |volume=22 |issue=4 |pages=417–437 |doi=10.1093/chemse/22.4.417 |pmid=9279465 |doi-access=free}}</ref><ref>{{cite journal |last1=Rasmussen |first1=L. E. L. |last2=Lee |first2=T. D. |last3=Roelofs |first3=W. L. |last4=Zhang |first4=A. J. |last5=Daves |first5=G. D. |year=1996 |title=Insect pheromone in elephants |journal=[[Nature (journal)|Nature]] |volume=379 |issue=6567 |page=684 |bibcode=1996Natur.379..684R |doi=10.1038/379684a0 |pmid=8602213 |doi-access=free |s2cid=4330432}}</ref> In both insects and elephants, this chemical compound is used as an attractant to assist the mating process. In elephants, the chemical is secreted through urination and this aids in the attraction of bulls to mate. Once detected, the chemical stimulates the [[vomeronasal organ]] of the bull, thus providing information on the maturity of the female.<ref>{{cite journal |last=Rasmussen |first=L.E.L |date=February 22, 1996 |title=Insect Pheromones in Elephants |url=https://www.nature.com/articles/379684a0.pdf?platform=hootsuite |journal=Nature |volume=379 |issue=6567 |page=684 |doi=10.1038/379684a0 |pmid=8602213 |bibcode=1996Natur.379..684R |s2cid=4330432 |access-date=27 November 2022 |archive-date=3 November 2022 |archive-url=https://web.archive.org/web/20221103224206/https://www.nature.com/articles/379684a0.pdf?platform=hootsuite |url-status=live }}</ref>


In addition to reproductive communication, chemosensory signaling is used to facilitate same-sex interactions.<ref name=":43"/> When less developed males detect pheromones from a male in musth, they often retreat to avoid coming in contact with aggressive behaviors.<ref name=":43"/> Female elephants have also been seen to communicate with each other through pheromone in urine.<ref name=":33"/><ref name=":43"/> The purpose of this type of intersex communication is still being investigated. However, there are clear differences in signaling strength and receiver response throughout different stages of the estrous cycle.<ref name=":43"/>
Reproductive signaling exchange between male and female elephants are transmitted through olfactory cues in bodily fluids.<ref name="Schulte"/> In males, the increase in frontalin during musth heightens their sensitivity to the (Z)-7-dodecen-1-yl acetate produced by female elephants.<ref name="Rasmussen"/> Once perceived by receptors in the trunk, a sequence of ritualistic behaviors follow. The responses in males vary based on both the stage of development and the temperament of the elephant.<ref name="Schulte"/> This process of receiving and processing signals through the trunk is referred to as flehmen. The difference in body movements give cues to gauge if the male is interested in breeding with the female that produced the secretion.<ref name="Bruce">{{cite journal |last1=Schulte |first1=Bruce A. |last2=LaDue |first2=Chase A. |date=30 September 2021 |title=The Chemical Ecology of Elephants: 21st Century Additions to Our Understanding and Future Outlooks |journal=Animals |volume=11 |issue=10 |page=2860 |doi=10.3390/ani11102860 |pmid=34679881 |pmc=8532676 |issn=2076-2615|doi-access=free }}</ref> A bull that is ready to breed will move closer to the urine and in some cases an erection response is elicited. A bull that is not ready to breed will be timid and try to dissociate themselves from the signal.<ref name="Schulte"/> In addition to reproductive communication, chemosensory signaling is used to facilitate same-sex interactions. When less developed males detect pheromones from a male in musth, they often retreat to avoid coming in contact with aggressive behaviors. Female elephants have also been seen to communicate with each other through pheromone in urine.<ref name="Schulte"/> The purpose of this type of intrasex communication is still being investigated. However, there are clear differences in signaling strength and receiver response throughout different stages of the estrous cycle.<ref name="Bruce"/>


The [[gestation period]] is 18–22 months, and the cow gives birth to one [[calf (animal)|calf]], only occasionally [[twin]]s. The calf is fully developed by the 19th month, but stays in the [[Uterus|womb]] to grow so that it can reach its mother to feed. At birth, the calf weighs about {{convert|100|kg|lb|abbr=on}}, and is [[Lactation|suckled]] for up to three years. Once a female gives birth, she usually does not breed again until the first calf is weaned, resulting in a four to five-year birth interval. During this period, mother to calf communication primarily takes place through temporal means. However, male calves have been known to develop sex pheromone producing organs at a young age.<ref name=":6">{{Cite journal |last1=Johnson |first1=Edward W. |last2=Rasmussen |first2=Lel |date=2002-07-01 |title=Morphological characteristics of the vomeronasal organ of the newborn Asian elephant (Elephas maximus) |journal=The Anatomical Record |language=en |volume=267 |issue=3 |pages=252–259 |doi=10.1002/ar.10112 |pmid=12115276 |s2cid=30345793 |issn=0003-276X|doi-access=free }}</ref> Early maturity of the vomeronasal organ allows immature elephants to produce and receive [[pheromone]]s.<ref name=":6" />  It is unlikely that the integration of these pheromones will result in a flehmen response in a calf.<ref name=":43"/> Females stay on with the herd, but mature males are chased away.<ref>{{cite web |title=Elephant Social Organisation |url=http://www.ccrsl.org/CCR/Programs/SocialOrganisation.htm |website=ccrsl |access-date=29 August 2015}}</ref>
The [[gestation period]] is 18–22 months, and the cow gives birth to one [[calf (animal)|calf]], only occasionally [[twin]]s. The calf is fully developed by the 19th month, but stays in the [[Uterus|womb]] to grow so that it can reach its mother to feed. At birth, the calf weighs about {{convert|100|kg|lb|abbr=on}}, and is [[Lactation|suckled]] for up to three years. Once a female gives birth, she usually does not breed again until the first calf is weaned, resulting in a four to five-year birth interval.<ref>{{cite journal |last1=Crawley |first1=J. A. H. |last2=Mumby |first2=H. S. |last3=Chapman |first3=S. N. |last4=Lahdenperä |first4=M. |last5=Mar |first5=K. U. |last6=Htut |first6=W. |last7=Thura Soe |first7=A. |last8=Aung |first8=H. H. |last9=Lummaa |first9=V. |date=2017-08-05 |title=Is bigger better? The relationship between size and reproduction in female Asian elephants |journal=Journal of Evolutionary Biology |volume=30 |issue=10 |pages=1836–1845 |doi=10.1111/jeb.13143 |pmid=28703384 |issn=1010-061X }}</ref><ref>{{Cite book |last=Owen-Smith |first=R. Norman |url=https://books.google.com/books?id=1jT72JdLVIcC |title=Megaherbivores: The Influence of Very Large Body Size on Ecology |date=1988 |publisher=Cambridge University Press |isbn=978-0-521-42637-4 |language=en |pages=145–150 |access-date=21 May 2024 |archive-date=21 May 2024 |archive-url=https://web.archive.org/web/20240521144710/https://books.google.com/books?id=1jT72JdLVIcC |url-status=live }}</ref> During this period, mother to calf communication primarily takes place through temporal means. However, male calves have been known to develop sex pheromone-producing organs at a young age. Early maturity of the vomeronasal organ allows immature elephants to produce and receive [[pheromone]]s.<ref>{{cite journal |last1=Johnson |first1=Edward W. |last2=Rasmussen |first2=Lel |date=2002-07-01 |title=Morphological characteristics of the vomeronasal organ of the newborn Asian elephant (Elephas maximus) |journal=The Anatomical Record |language=en |volume=267 |issue=3 |pages=252–259 |doi=10.1002/ar.10112 |pmid=12115276 |s2cid=30345793 |issn=0003-276X|doi-access=free }}</ref> It is unlikely that the integration of these pheromones will result in a flehmen response in a calf.<ref name="Bruce"/> Females stay on with the herd, but mature males are chased away.<ref>{{cite web |title=Elephant Social Organisation |url=http://www.ccrsl.org/CCR/Programs/SocialOrganisation.htm |website=ccrsl |access-date=29 August 2015 |archive-date=4 March 2016 |archive-url=https://web.archive.org/web/20160304192956/http://www.ccrsl.org/CCR/Programs/SocialOrganisation.htm |url-status=live }}</ref>


Asian elephants reach adulthood at 17 years of age in both sexes.<ref>{{cite journal |last=Khyne |first=U. M. |year=2002 |title=The studbook of timber elephants of Myanmar with special reference to survivorship analysis |journal=Proceedings of the International Workshop on the Domesticated Asian Elephant}}</ref> Average elephant [[life expectancy]] is 60 years in the wild and 80 in captivity, although this has been exaggerated in the past.<ref name="Shoshani82" /> [[Generation time|Generation length]] of the Asian elephant is 22 years.<ref>{{cite journal |title=Generation length for mammals |last1=Pacifici|first1=M. |last2=Santini|first2=L. |last3=Di Marco|first3=M. |last4=Baisero|first4=D. |last5=Francucci|first5=L. |last6=Grottolo Marasini|first6=G. |last7=Visconti|first7=P. |last8=Rondinini|first8=C. |journal=Nature Conservation |year=2013 |volume=5 |pages=87–94 |url=https://natureconservation.pensoft.net/article/1343/ |doi=10.3897/natureconservation.5.5734 |doi-access=free}}</ref>
Female Asian elephants sexually mature around the age of 10~15 and keep growing until 30, while males fully mature at more than the age of 25, and constantly grow throughout their life.<ref>{{cite journal |author1=Fernando, P. |author2=Vijayakrishnan, S. |author3=Ranjeewa, A. D. |author4=Pastorini, J. |year=2022 |title=Size-age class scale for Asian elephants |journal=Gajah |volume=55 |pages=30–39 }}</ref><ref>{{cite journal |author1=Mumby, H. S. |author2=Chapman, S. N. |author3=Crawley, J. A. |author4=Mar, K. U. |author5=Htut, W. |author6=Thura Soe, A. |author7=Lummaa, V. |year=2015 |title=Distinguishing between determinate and indeterminate growth in a long-lived mammal |journal=BMC Evolutionary Biology |volume=15 |issue=1 |pages=1–9 |doi=10.1186/s12862-015-0487-x |doi-access=free |pmid=26464339 |pmc=4604763 |bibcode=2015BMCEE..15..214M }}</ref> Average elephant [[life expectancy]] is approximately 60 years.<ref name="Shoshani82"/> Some individuals are known to have lived into their late 80s.<ref name="BBC">{{cite news |date=7 February 2019 |title='Oldest known elephant in captivity' dies at 88 in India |url=https://www.bbc.com/news/world-asia-india-47161030 |publisher=BBC News}}</ref> [[Generation time|Generation length]] of the Asian elephant is 22 years.<ref>{{cite journal |title=Generation length for mammals |last1=Pacifici |first1=M. |last2=Santini |first2=L. |last3=Di Marco |first3=M. |last4=Baisero |first4=D. |last5=Francucci |first5=L. |last6=Grottolo Marasini |first6=G. |last7=Visconti |first7=P. |last8=Rondinini |first8=C. |journal=Nature Conservation |year=2013 |volume=5 |pages=87–94 |url=https://natureconservation.pensoft.net/article/1343/ |doi=10.3897/natureconservation.5.5734 |doi-access=free |access-date=20 November 2020 |archive-date=26 January 2021 |archive-url=https://web.archive.org/web/20210126190754/https://natureconservation.pensoft.net/article/1343/ |url-status=live }}</ref>


===Intelligence===
===Intelligence===
{{main|Elephant cognition}}
{{main|Elephant cognition}}
Asian elephants have a very large and highly developed [[neocortex]], a trait also shared by [[humans]], [[apes]] and certain [[dolphin]] species. They have a greater volume of [[cerebral cortex]] available for [[cognitive]] processing than all other existing land animals.{{Citation needed|date=January 2020}} Results of studies indicate that Asian elephants have cognitive abilities for tool use and tool-making similar to [[great apes]].<ref name=Hart>{{cite journal |author=Hart, B.L. |author2=Hart, L.A. |author3=McCoy, M. |author4=Sarath, C.R. |s2cid=53184282 |title=Cognitive behaviour in Asian elephants: use and modification of branches for fly switching |journal=Animal Behaviour |volume=62 |issue=5 |pages=839–847 |date=2001 |doi=10.1006/anbe.2001.1815}}</ref> They exhibit a wide variety of behaviours, including those associated with [[grief]], learning, [[allomothering]], [[mimicry]], play, [[altruism]], use of [[tools]], [[compassion]], [[cooperation]], [[self-awareness]], [[memory]], and [[Animal communication|language]]. Elephants reportedly head to safer ground during natural disasters like [[tsunami]]s and earthquakes, but data from two satellite-collared Sri Lankan elephants indicate this may be untrue.<ref>{{cite journal |author=Wikramanayake, E. |author2=Fernando, P. |author3=Leimgruber, P. |title=Behavioral response of satellite‐collared elephants to the tsunami in southern Sri Lanka |journal=Biotropica |volume=38 |issue=6 |pages=775–777 |date=2008 |doi=10.1111/j.1744-7429.2006.00199.x |doi-access=}}</ref>


Several students of elephant cognition and [[neuroanatomy]] are convinced that Asian elephants are highly intelligent and self-aware.<ref>{{Cite book |title=Elephant Bill |last=Williamson|first=J. H.|publisher=Doubleday |year=1950}}</ref><ref>{{cite web |author=Aldous, P. |title=Elephants see themselves in the mirror |publisher=New Scientist |date=2006 |url=https://www.newscientist.com/article/dn10402-elephants-see-themselves-in-the-mirror.html}}</ref><ref>{{Cite book |title=Elephants |last=Poole |first=J. |publisher=World Life Library |year=1997 |isbn=978-0896583573 |url=https://archive.org/details/elephants00pool }}</ref> Others contest this view.<ref>{{Cite book |title=Thirteen years among the wild beasts of India |last=Sanderson|first=G. P.|publisher=W.H. Allen and Co. |year=1879|location=London |pages=80}}</ref><ref>{{Cite journal |last=Nissani|first=M. |date=2006|title=Do Asian elephants apply causal reasoning to tool use tasks?|journal=Journal of Experimental Psychology: Animal Behavior Processes|volume=31 |issue=1 |pages=91–96 |doi=10.1037/0097-7403.32.1.91|pmid=16435969}}</ref>
[[File:Insightful-Problem-Solving-in-an-Asian-Elephant-pone.0023251.s008.ogv|thumb|Elephant stacking blocks to allow it to reach food]]
 
Asian elephants have a very large and highly developed [[neocortex]], a trait also shared by [[humans]], [[apes]] and certain [[dolphin]] species. They have a greater volume of [[cerebral cortex]] available for [[cognitive]] processing than all other existing land animals. Results of studies indicate that Asian elephants have cognitive abilities for tool use and tool-making similar to [[great apes]].<ref>{{cite journal |last1=Hart |first1=Benjamin L. |last2=Hart |first2=Lynette A. |last3=McCoy |first3=Michael |last4=Sarath |first4=C. R. |date=November 2001 |title=Cognitive behaviour in Asian elephants: use and modification of branches for fly switching |url=https://www.sciencedirect.com/science/article/pii/S0003347201918159 |journal=Animal Behaviour |volume=62 |issue=5 |pages=839–847 |doi=10.1006/anbe.2001.1815 |issn=0003-3472 |access-date=18 March 2024 |archive-date=5 February 2017 |archive-url=https://web.archive.org/web/20170205034217/http://www.sciencedirect.com/science/article/pii/S0003347201918159 |url-status=live |url-access=subscription }}</ref> They exhibit a wide variety of behaviours, including those associated with [[grief]], learning, [[allomothering]], [[mimicry]], play, [[altruism]], use of [[tools]], [[compassion]], [[cooperation]], [[self-awareness]], [[memory]], and [[Animal communication|language]].<ref>{{cite journal |last1=Barrett |first1=Lisa P. |last2=Benson-Amram |first2=Sarah |date=August 2021 |title=Multiple assessments of personality and problem-solving performance in captive Asian elephants (Elephas maximus) and African savanna elephants (Loxodonta africana). |journal=Journal of Comparative Psychology |language=en |volume=135 |issue=3 |pages=406–419 |doi=10.1037/com0000281 |issn=1939-2087|doi-access=free |pmid=34166041 }}</ref> Elephants reportedly head to safer ground during natural disasters like [[tsunami]]s and earthquakes, but data from two satellite-collared Sri Lankan elephants indicate this may be untrue.<ref>{{cite journal |author=Wikramanayake, E. |author2=Fernando, P. |author3=Leimgruber, P. |title=Behavioral response of satellite-collared elephants to the tsunami in southern Sri Lanka |journal=Biotropica |volume=38 |issue=6 |pages=775–777 |date=2008 |doi=10.1111/j.1744-7429.2006.00199.x |s2cid=85358582 |doi-access=}}</ref> Several students of elephant cognition and [[neuroanatomy]] are convinced that Asian elephants are highly intelligent and self-aware.<ref>{{cite journal |last1=S. |first1=J. K. |last2=Williams |first2=J. H. |date=October 1950 |title=Elephant Bill |journal=The Geographical Journal |volume=116 |issue=4/6 |page=229 |doi=10.2307/1789395 |jstor=1789395 |bibcode=1950GeogJ.116..229S |issn=0016-7398 }}</ref><ref>{{cite web |author=Aldous, P. |title=Elephants see themselves in the mirror |publisher=New Scientist |date=2006 |url=https://www.newscientist.com/article/dn10402-elephants-see-themselves-in-the-mirror.html |access-date=24 August 2017 |archive-date=11 May 2015 |archive-url=https://web.archive.org/web/20150511085708/http://www.newscientist.com/article/dn10402-elephants-see-themselves-in-the-mirror.html |url-status=live }}</ref><ref>{{cite book |title=Elephants |last=Poole |first=J. |publisher=World Life Library |year=1997 |isbn=978-0-896-58357-3 |url=https://archive.org/details/elephants00pool |page=61 }}</ref> Others contest this view.<ref>{{cite book |title=Thirteen years among the wild beasts of India |last=Sanderson|first=G. P.|publisher=W.H. Allen and Co. |year=1879|location=London |page=80}}</ref><ref>{{cite journal |last=Nissani|first=M. |date=2006|title=Do Asian elephants apply causal reasoning to tool use tasks?|journal=Journal of Experimental Psychology: Animal Behavior Processes|volume=31 |issue=1 |pages=91–96 |doi=10.1037/0097-7403.32.1.91|pmid=16435969}}</ref>


==Threats==
==Threats==
The pre-eminent threats to the Asian elephant today are the loss, degradation and fragmentation of its habitat, which leads to increasing conflicts between humans and elephants. Asian elephants are [[Poaching|poached]] for [[ivory]] and a variety of other products including [[Elephant meat|meat]] and [[leather]].<ref name="iucn" /> The demand for elephant skin has risen due to it being an increasingly-common ingredient in traditional Chinese medicine.
The pre-eminent threats to the Asian elephant today are the loss, degradation and fragmentation of its habitat, which leads to increasing conflicts between humans and elephants. Asian elephants are [[Poaching|poached]] for [[ivory]] and a variety of other products including [[Elephant meat|meat]] and [[leather]].<ref name="MSOF" /> The demand for elephant skin has risen due to it being an increasingly-common ingredient in traditional Chinese medicine.<ref>{{cite journal |last1=Wang |first1=David Q-H |last2=Carey |first2=Martin C |date=2014-08-07 |title=Therapeutic uses of animal biles in traditional Chinese medicine: An ethnopharmacological, biophysical chemical and medicinal review |journal=World Journal of Gastroenterology  |volume=20 |issue=29 |pages=9952–9975 |doi=10.3748/wjg.v20.i29.9952 |doi-access=free |issn=1007-9327 |pmc=4123376 |pmid=25110425}}</ref><ref>{{cite journal |last1=Nijman |first1=Vincent |last2=Shepherd |first2=Chris R. |date=2017-07-12 |title=Ethnozoological assessment of animals used by Mon traditional medicine vendors at Kyaiktiyo, Myanmar |url=https://www.sciencedirect.com/science/article/pii/S0378874117304865 |journal=Journal of Ethnopharmacology |volume=206 |pages=101–106 |doi=10.1016/j.jep.2017.05.010 |pmid=28506903 |issn=0378-8741 |access-date=18 March 2024 |archive-date=21 May 2024 |archive-url=https://web.archive.org/web/20240521145240/https://www.sciencedirect.com/science/article/abs/pii/S0378874117304865 |url-status=live |url-access=subscription }}</ref>


=== Human–elephant conflict ===
=== Human–elephant conflict ===
[[File:Jhum.jpg|thumb|Prime elephant habitat cleared for ''[[jhum]]''—a type of [[shifting cultivation]] practiced in [[Arunachal Pradesh]]]]
[[File:Jhum.jpg|thumb|Forests cleared for ''[[jhum]]''—a type of [[shifting cultivation]] practiced in [[Arunachal Pradesh]], India]]
[[File:Khaoyai 06.jpg|thumb|Elephants on the road in [[Khao Yai National Park]], Thailand]]
[[File:Khaoyai 06.jpg|thumb|Elephants on the road in [[Khao Yai National Park]], Thailand]]
In some parts of Asia, people and elephants have co-existed for thousands of years.<ref>{{cite journal |last1=Lim |first1=T. |last2=Campos-Arceiz |first2=A. |date=2022 |title=A Review of Human-Elephant Ecological Relations in the Malay Peninsula: Adaptations for Coexistence |journal=Diversity |volume=14 |issue=1 |page=36 |doi=10.3390/d14010036  |doi-access=free |bibcode=2022Diver..14...36L}}</ref> In other areas, people and elephants come into conflict, resulting in violence, and ultimately, the displacement of elephants.<ref>{{cite journal |last1=De la Torre |first1=J. A. |last2=Wong |first2=E. P. |last3=Lechner |first3=A. M. |last4=Zulaikha |first4=N. |last5=Zawawi |first5=A. |last6=Abdul-Patah |first6=P. |last7=Saaban |first7=S. |last8=Goossens |first8=B. |last9=Campos-Arceiz |first9=A. |date=2021 |title=There will be conflict – agricultural landscapes are prime, rather than marginal, habitats for Asian elephants |journal=Animal Conservation |volume=24 |issue=5 |pages=720–732 |doi=10.1111/acv.12668 |bibcode=2021AnCon..24..720D}}</ref> The main causes of human-elephant conflict includes the growing human population, large-scale development projects and poor top-down [[governance]]. Proximate causes includes [[habitat loss]] due to [[deforestation]], disruption of elephant migratory routes, [[agricultural expansion|expansion of agriculture]] and illegal encroachment into protected areas.<ref name=Barua2010>{{cite journal |author=Barua, M. |year=2010 |title=Whose issue? Representations of human-elephant conflict in Indian and international media |doi=10.1177/1075547009353177 |url=https://docs.google.com/viewer?a=v&pid=sites&srcid=ZGVmYXVsdGRvbWFpbnxtYWFuYmFydWF8Z3g6MzA5MTlkMjU2YjllMWVhMw |journal=Science Communication |volume=32 |pages=55–75 |s2cid=143335411 |access-date=29 January 2012 |archive-date=8 October 2013 |archive-url=https://web.archive.org/web/20131008191918/https://docs.google.com/viewer?a=v&pid=sites&srcid=ZGVmYXVsdGRvbWFpbnxtYWFuYmFydWF8Z3g6MzA5MTlkMjU2YjllMWVhMw |url-status=live |url-access=subscription}}</ref>


In some parts of Asia, people and elephants have co-existed for thousands of years.<ref>{{Cite journal |last1=Lim |first1=Teckwyn |last2=Campos-Arceiz |first2=Ahimsa |date=2022 |title=A Review of Human-Elephant Ecological Relations in the Malay Peninsula: Adaptations for Coexistence |journal=Diversity |language=en |volume=14 |issue=1 |pages=36 |doi=10.3390/d14010036 |issn=1424-2818 |doi-access=free }}</ref> In other areas, people and elephants come into conflict, resulting in violence and ultimately displacement of elephants.
[[Deforestation in Southeast Asia|Destruction of forests]] through [[logging]], encroachment, [[slash-and-burn]], [[shifting cultivation]], and [[monoculture]] tree plantations are major threats to the survival of elephants. Human–elephant conflicts occur when elephants raid crops of shifting cultivators in fields, which are scattered over a large area interspersed with forests. [[Pest (organism)|Depredation]] in human settlements is another major area of human–elephant conflict occurring in small forest pockets, encroachments into elephant habitat, and on elephant migration routes.<ref name="Choudhury2003">{{cite journal |author=Choudhury, A. U. |url=http://www.indiaenvironmentportal.org.in/files/Human%E2%80%93Elephant%20Conflicts%20in%20Northeast%20India.pdf|doi=10.1080/10871200490505693|title=Human–Elephant Conflicts in Northeast India |year=2004|journal=Human Dimensions of Wildlife|volume=9|issue=4|pages=261–270|bibcode=2004HDW.....9..261C |s2cid=145776270|access-date=27 September 2013|archive-date=14 January 2014|archive-url=https://web.archive.org/web/20140114151840/http://www.indiaenvironmentportal.org.in/files/Human%E2%80%93Elephant%20Conflicts%20in%20Northeast%20India.pdf|url-status=live}}</ref> However, studies in Sri Lanka indicate that traditional slash-and-burn agriculture may create optimal habitats for elephants by creating a mosaic of successional-stage vegetation. Populations inhabiting small habitat fragments are much more liable to come into conflict with humans.<ref>{{cite journal |author=Fernando, P. |year=2000 |url=http://www.ccrsl.org/Downloads/Fernando-00-ElephantsSriLanka.pdf |title=Elephants in Sri Lanka: past present and future |journal=Loris |volume=22 |issue=2 |pages=38–44 |access-date=8 December 2012 |archive-date=14 January 2014 |archive-url=https://web.archive.org/web/20140114060744/http://www.ccrsl.org/Downloads/Fernando-00-ElephantsSriLanka.pdf |url-status=live}}</ref>


[[Deforestation in Southeast Asia|Destruction of forests]] through [[logging]], encroachment, [[slash-and-burn]], [[shifting cultivation]], and [[monoculture]] tree plantations are major threats to the survival of elephants. Human–elephant conflicts occur when elephants raid crops of shifting cultivators in fields, which are scattered over a large area interspersed with forests. [[Pest (organism)|Depredation]] in human settlements is another major area of human–elephant conflict occurring in small forest pockets, encroachments into elephant habitat, and on elephant migration routes.<ref name="Choudhury2003">{{cite journal|author=Choudhury, A. U.|url=http://www.indiaenvironmentportal.org.in/files/Human%E2%80%93Elephant%20Conflicts%20in%20Northeast%20India.pdf |doi=10.1080/10871200490505693|title=Human–Elephant Conflicts in Northeast India|year=2004|journal=Human Dimensions of Wildlife|volume=9|issue=4|pages=261–270|s2cid=145776270 }}</ref> However, studies in Sri Lanka indicate that traditional slash-and-burn agriculture may create optimal habitat for elephants by creating a mosaic of successional-stage vegetation. Populations inhabiting small habitat fragments are much more liable to come into conflict with humans.<ref>{{cite journal|author=Fernando, P. |year=2000|url=http://www.ccrsl.org/Downloads/Fernando-00-ElephantsSriLanka.pdf |title=Elephants in Sri Lanka: past present and future|journal= Loris |volume=22 |issue=2|pages= 38–44}}</ref>
Development such as border fencing along the [[India–Bangladesh border]] has become a major impediment to the free movement of elephants.<ref>{{cite journal |last1=Choudhury |first1=A. U. |year=2007 |title = Impact of border fence along India – Bangladesh border on elephant movement |url=http://www.asesg.org/PDFfiles/Gajah/26-27-Choudhury.pdf |journal=Gajah |volume=26 |pages=27–30 |access-date = 18 October 2011 |archive-date = 25 April 2012 |archive-url=https://web.archive.org/web/20120425075130/http://www.asesg.org/PDFfiles/Gajah/26-27-Choudhury.pdf |url-status=live}}</ref> In [[Assam]], more than 1,150 humans and 370 elephants died as a result of human-elephant conflict between 1980 and 2003.<ref name=Choudhury2003/> In a 2010 study, it was estimated that in India alone, over 400 people were killed by elephants each year, and 0.8 to 1 million hectares were damaged, affecting at least 500,000 families across the country.<ref name=Rangarajan2010>Rangarajan, M., Desai, A., Sukumar, R., Easa, P. S., Menon, V., Vincent, S., Ganguly, S., Talukdar, B. K., Singh, B., Mudappa, D., Chowdhary, S., Prasad, A. N. (2010). [http://www.moef.nic.in/downloads/public-information/ETF_REPORT_FINAL.pdf ''Gajah: Securing the future for elephants in India''] {{Webarchive|url=https://web.archive.org/web/20130619130613/http://www.moef.nic.in/downloads/public-information/ETF_REPORT_FINAL.pdf |date=19 June 2013 }}. Report of the Elephant Task Force. Ministry of Environment and Forests, New Delhi.</ref><ref>{{cite journal |author=Choudhury, A. |year=2004 |title=Human–elephant conflicts in Northeast India |journal=Human Dimensions of Wildlife |volume=9 |issue=4 |pages=261–270 |doi=10.1080/10871200490505693}}</ref><ref>{{Cite book |date=2005 |title=People and Wildlife, Conflict or Co-existence? |place=Cambridge |publisher=Cambridge University Press |isbn=978-0-521-82505-4 |editor1=Rabinowitz, A. |editor2=Thirgood, S. |editor3=Rabinowitz, A. |last1=Woodroffe |first1=R. |last2=Thirgood |first2=S. |last3=Rabinowitz |first3=A.|chapter=The impact of human–wildlife conflict on natural systems |chapter-url=https://www.cambridge.org/core/books/people-and-wildlife-conflict-or-coexistence/impact-of-humanwildlife-conflict-on-natural-systems/81919D9BCBE4377164F59C4D52F1CBA6 |pages=1–12 |doi=10.1017/CBO9780511614774.002}}</ref> Moreover, elephants are known to destroy crops worth up to US$2–3 million annually.<ref name=Bist2006>{{cite journal |author=Bist, S. S.|year=2006|url=http://www.asesg.org/PDFfiles/Gajah/25-27-Bist.pdf|title=Elephant conservation in India – an overview |journal=Gajah|volume=25|pages=27–35|access-date=30 January 2012|archive-date=3 June 2013|archive-url=https://web.archive.org/web/20130603035950/http://www.asesg.org/PDFfiles/Gajah/25-27-Bist.pdf|url-status=live}}</ref> This has major impacts on the welfare and livelihoods of local communities, as well as the future conservation of this species.<ref name=Barua2010/> In countries like [[Bangladesh]] and [[Sri Lanka]], the Asian elephant is one of the most feared wild animals, even though they are less deadly than other local animals such as [[venomous snake]]s (which were estimated to claim more than 30 times more lives in Sri Lanka than elephants).<ref>{{cite journal |author1=Raihan Sarker, A. H. M. |author2=Røskaft, E. |year=2010 |title=Human–wildlife conflicts and management options in Bangladesh, with special reference to Asian elephants (''Elephas maximus'') |journal=International Journal of Biodiversity Science, Ecosystem Services & Management |volume= 6 |issue=3–4 |pages=164–175 |doi=10.1080/21513732.2011.554867}}</ref><ref>{{cite journal |journal=Ceylon Journal of Sciences (Bio. Sci.) |last1=Santiapillai |first1=C. |last2=Wijeyamohan |first2=S. |last3=Bandara |first3=G. |last4=Athurupana |first4=R. |last5=Dissanayake |first5=N. |last6=Read |first6=B. |date=2010 |title=An assessment of the human-elephant conflict in Sri Lanka |volume=39 |issue=1 |page=21 |doi=10.4038/cjsbs.v39i1.2350 |doi-access=free}}</ref>


Human-elephant conflict can be categorised into:<ref name=Barua2010>{{cite journal |author=Barua, M. |year=2010 |title=Whose issue? Representations of human-elephant conflict in Indian and international media |doi=10.1177/1075547009353177 |url=https://docs.google.com/viewer?a=v&pid=sites&srcid=ZGVmYXVsdGRvbWFpbnxtYWFuYmFydWF8Z3g6MzA5MTlkMjU2YjllMWVhMw |journal=Science Communication |volume=32 |pages=55–75|s2cid=143335411 }}</ref>
As a whole, Asian elephants display highly sophisticated and sometimes unpredictable behaviour. Most untamed elephants try to avoid humans, but if they are caught off guard by any perceived physical threat, including humans, they will likely charge. This is especially true of males in [[musth]] and of females with young. Gunfire and other similar methods of deterring, which are known to be effective against many kinds of wild animals including tigers, may or may not work with elephants, and can even worsen the situation. Elephants that have been abused by humans in the past often become "rogue elephants", which regularly attack people with no provocation.<ref>{{cite journal |author1=Hoare, R. E. |year=1999 |title=Determinants of human–elephant conflict in a land-use mosaic |journal=Journal of Applied Ecology |volume=36 |issue=5 |pages=689–700 |doi=10.1046/j.1365-2664.1999.00437.x}}</ref><ref>{{cite journal |author1=Rasmussen, L. E. L. |year=1999 |title=Evolution of chemical signals in the Asian elephant, ''Elephas maximus'': behavioural and ecological influences |journal=Journal of Biosciences |volume=24 |issue=2 |pages=241–251 |doi=10.1007/BF02941206}}</ref><ref>{{cite journal |author1=Sukumar, R. |year=1995 |title=Elephant raiders and rogues |journal=Natural History |volume=104 |issue=7 |pages=52–61}}</ref>
* ultimate causes including growing human population, large-scale development projects and poor top-down [[governance]];
* proximate causes including [[habitat loss]] due to [[deforestation]], disruption of elephant migratory routes, [[agricultural expansion|expansion of agriculture]] and illegal encroachment into protected areas.
 
Development such as border fencing along the [[India–Bangladesh border]] has become a major impediment to the free movement of elephants.<ref>{{cite journal | last1 = Choudhury | first1 = A. U. | year = 2007 | title = Impact of border fence along India – Bangladesh border on elephant movement | url = http://www.asesg.org/PDFfiles/Gajah/26-27-Choudhury.pdf | journal = Gajah | volume = 26 | pages = 27–30 }}</ref> In [[Assam]], more than 1,150 humans and 370 elephants died as a result of human-elephant conflict between 1980 and 2003.<ref name=Choudhury2003/> In India alone, over 400 people are killed by elephants every year, and 0.8 to 1 million hectares are damaged, affecting at least 500,000 families across the country.<ref name=Rangarajan2010>Rangarajan, M., Desai, A., Sukumar, R., Easa, P. S., Menon, V., Vincent, S., Ganguly, S., Talukdar, B. K., Singh, B., Mudappa, D., Chowdhary, S., Prasad, A. N. (2010). [http://www.moef.nic.in/downloads/public-information/ETF_REPORT_FINAL.pdf ''Gajah: Securing the future for elephants in India''] {{Webarchive|url=https://web.archive.org/web/20130619130613/http://www.moef.nic.in/downloads/public-information/ETF_REPORT_FINAL.pdf |date=19 June 2013 }}. Report of the Elephant Task Force. Ministry of Environment and Forests, New Delhi.</ref><ref>Choudhury, A. (2004). ''Human–elephant conflicts in Northeast India''. Human Dimensions of Wildlife, 9(4), 261–270. {{doi|10.1080/10871200490505693}}</ref><ref>Thirgood, S., Woodroffe, R., & Rabinowitz, A. (2005). ''The impact of human-wildlife conflict on human lives and livelihoods''. Conservation Biology Series-Cambridge-, 9, 13.</ref> Moreover, elephants are known to destroy crops worth up to US$2–3 million annually.<ref name=Bist2006>{{cite journal|author=Bist, S. S. |year=2006|url=http://www.asesg.org/PDFfiles/Gajah/25-27-Bist.pdf |title=Elephant conservation in India – an overview|journal= Gajah |volume=25|pages= 27–35}}</ref> This has major impacts on the welfare and livelihoods of local communities, as well as the future conservation of this species.<ref name=Barua2010/> In countries like [[Bangladesh]] and [[Sri Lanka]], the Asian elephant is one of the most feared wild animals, even though they are less deadly than other local animals such as [[venomous snake]]s (which were estimated to claim more than 30 times more lives in Sri Lanka than elephants).<ref>Raihan Sarker, A. H. M., & Røskaft, E. (2010). ''Human–wildlife conflicts and management options in Bangladesh, with special reference to Asian elephants (Elephas maximus)''. International Journal of Biodiversity Science, Ecosystem Services & Management, 6(3–4), 164–175. {{doi|10.1080/21513732.2011.554867}}</ref><ref>Santiapillai, C., Wijeyamohan, S., Bandara, G., Athurupana, R., Dissanayake, N., & Read, B. (2010). ''An assessment of the human-elephant conflict in Sri Lanka''. Ceylon Journal of Science (Biological Sciences), 39(1).</ref> As a whole, Asian elephants display highly sophisticated and sometimes unpredictable behaviour. Most untamed elephants try to avoid humans, but if they are caught off guard by any perceived physical threat, including humans, they will likely charge. This is especially true of males in [[musth]] and of females with young. Gunfire and other similar methods of deterring, which are known to be effective against many kinds of wild animals including tigers, may or may not work with elephants, and can even worsen the situation. Elephants that have been abused by humans in the past often become "rogue elephants", which regularly attack people with no provocation.<ref>Hoare, R. E. (1999). ''Determinants of human–elephant conflict in a land‐use mosaic''. Journal of applied ecology, 36(5), 689–700. {{doi|10.1046/j.1365-2664.1999.00437.x}}</ref><ref>Rasmussen, L. E. L. (1999). ''Evolution of chemical signals in the Asian elephant, Elephas maximus: behavioural and ecological influences''. Journal of Biosciences, 24(2), 241–251. {{doi|10.1007/BF02941206}}</ref><ref>Sukumar, R. (1995). ''Elephant raiders and rogues''. Natural History, 104(7), 52–61.</ref>


=== Poaching ===
=== Poaching ===
====For ivory====
====For ivory====
The demand for [[ivory]] during the 1970s and 1980s, particularly in [[East Asia]], led to rampant [[poaching]] and the serious decline of elephants in both Africa and Asia. In [[Thailand]], the [[Wildlife trade#Illegal wildlife trade|illegal trade]] in live elephants and ivory still flourishes. Although the amount of ivory being openly sold has decreased substantially since 2001, Thailand still has one of the largest and most active black markets for ivory seen anywhere in the world. Tusks from Thai-poached elephants also enter the market; between 1992 and 1997 at least 24 male elephants were killed for their tusks.<ref name=Stiles2009>Stiles, D. (2009). [http://www.traffic.org/species-reports/traffic_species_mammals50.pdf ''The elephant and ivory trade in Thailand.''] {{Webarchive|url=https://web.archive.org/web/20120304094029/http://www.traffic.org/species-reports/traffic_species_mammals50.pdf |date=4 March 2012 }} TRAFFIC Southeast Asia, Petaling Jaya, Selangor, Malaysia.</ref>


The demand for [[ivory]] during the 1970s and 1980s, particularly in [[East Asia]], led to rampant [[poaching]] and the serious decline of elephants in both Africa and Asia. In [[Thailand]], the [[Wildlife trade#Illegal wildlife trade|illegal trade]] in live elephants and ivory still flourishes. Although the amount of ivory being openly sold has decreased substantially since 2001, Thailand still has one of the largest and most active black markets for ivory seen anywhere in the world. Tusks from Thai poached elephants also enter the market; between 1992 and 1997 at least 24 male elephants were killed for their tusks.<ref name=Stiles2009>Stiles, D. (2009). [http://www.traffic.org/species-reports/traffic_species_mammals50.pdf ''The elephant and ivory trade in Thailand.''] TRAFFIC Southeast Asia, Petaling Jaya, Selangor, Malaysia.</ref>
Up to the early 1990s, Vietnamese ivory craftsmen used exclusively Asian elephant ivory from Vietnam and neighbouring Lao and Cambodia. Before 1990, there were few tourists and the low demand for worked ivory could be supplied by domestic elephants. Economic liberalisation and an increase in tourism raised both local and visitors' demands for worked ivory, which resulted in heavy poaching.<ref>{{cite journal |author=Stiles, D. |year=2009 |title=The status of ivory trade in Thailand and Vietnam |url=http://www.traffic.org/traffic-bulletin/traffic_pub_bulletin_22_2.pdf |journal=TRAFFIC Bulletin |volume=22 |issue=2 |pages=83–91 |access-date=8 December 2012 |archive-date=17 April 2019 |archive-url=https://web.archive.org/web/20190417145251/https://www.traffic.org/bulletin/ |url-status=live }}</ref>
 
Up to the early 1990s, Vietnamese ivory craftsmen used exclusively Asian elephant ivory from Vietnam and neighbouring Lao and Cambodia. Before 1990, there were few tourists and the low demand for worked ivory could be supplied by domestic elephants. Economic liberalisation and an increase in tourism raised both local and visitors' demands for worked ivory, which resulted in heavy poaching.<ref>{{cite journal|author=Stiles, D. |year=2009|title=The status of ivory trade in Thailand and Vietnam|url=http://www.traffic.org/traffic-bulletin/traffic_pub_bulletin_22_2.pdf |journal=TRAFFIC Bulletin |volume=22 |issue=2|pages=83–91}}</ref>


====For skin====
====For skin====
The skin of the Asian elephant is used as an ingredient in [[Chinese medicine]] as well as in the manufacture of ornamental beads. The practice has been aided by China's State Forestry Administration (SFA), which has issued licences for the manufacture and sale of pharmaceutical products containing elephant skin, thereby making trading legal. In 2010, four skinned elephants were found in a forest in Myanmar; 26 elephants were killed by poachers in 2013 and 61 in 2016. According to the [[NGO]] [[Elephant Family]], Myanmar is the main source of elephant skin, where a poaching crisis has developed rapidly since 2010.<ref>{{cite report |author1=Flynn, V. |name-list-style=amp|author2=Stewart-Cox, B. |author3=Melidonis, C. |title=Skinned; The growing appetite for Asian elephants |date=2018 |publisher=Elephant Family |location=London |url=http://elephant-family.org/wp-content/uploads/2018/04/ElephantFamily_Elephant_Skin_Report.pdf |access-date=26 April 2018}}</ref>
The skin of the Asian elephant is used as an ingredient in [[Chinese medicine]] as well as in the manufacture of ornamental beads. The practice has been aided by China's [[State Forestry Administration]] (SFA), which has issued licences for the manufacture and sale of pharmaceutical products containing elephant skin, thereby making trading legal. In 2010, four skinned elephants were found in a forest in Myanmar; 26 elephants were killed by poachers in 2013 and 61 in 2016. According to the [[NGO]] [[Elephant Family]], Myanmar is the main source of elephant skin, where a poaching crisis has developed rapidly since 2010.<ref>{{cite report |author1=Flynn, V. |name-list-style=amp |author2=Stewart-Cox, B. |author3=Melidonis, C. |title=Skinned; The growing appetite for Asian elephants |date=2018 |publisher=Elephant Family |location=London |url=http://elephant-family.org/wp-content/uploads/2018/04/ElephantFamily_Elephant_Skin_Report.pdf |access-date=26 April 2018 |archive-date=26 April 2018 |archive-url=https://web.archive.org/web/20180426145126/http://elephant-family.org/wp-content/uploads/2018/04/ElephantFamily_Elephant_Skin_Report.pdf |url-status=live }}</ref>
 
=== Handling methods ===
Young elephants are captured and illegally imported to Thailand from [[Myanmar]] for use in the tourism industry; calves are used mainly in amusement parks and are trained to perform various stunts for tourists.<ref name=Stiles2009/>
 
The calves are often subjected to a 'breaking in' process, which may involve being tied up, confined, starved, beaten and tortured; as a result, two-thirds may perish.<ref name=guard120724>{{cite news |url=https://www.theguardian.com/environment/2012/jul/24/tourism-elephant-trade-burma-thailand |title=Tourism driving illegal elephant trade in Burma and Thailand – video |work=The Guardian |date=24 July 2012}}</ref> Handlers use a technique known as the [[training crush]], in which "handlers use sleep-deprivation, hunger, and thirst to "break" the elephants' spirit and make them submissive to their owners"; moreover, handlers drive nails into the elephants' ears and feet.<ref name=Hile>{{cite web|url=http://news.nationalgeographic.com/news/2002/10/1016_021016_phajaan.html|title=Activists Denounce Thailand's Elephant "Crushing" Ritual |last=Hile|first=J.|year=2002 |work=[[National Geographic Society]] |access-date=1 October 2014|quote=Just before dawn in the remote highlands of northern Thailand, west of the village Mae Jaem, a four-year-old elephant bellows as seven village men stab nails into her ears and feet. She is tied up and immobilized in a small, wooden cage. Her cries are the only sounds to interrupt the otherwise quiet countryside. The cage is called a "training crush." It's the centerpiece of a centuries-old ritual in northern Thailand designed to domesticate young elephants. In addition to beatings, handlers use sleep-deprivation, hunger, and thirst to "break" the elephants' spirit and make them submissive to their owners.}}</ref>


===Disease===
===Disease===
*See [[Elephant endotheliotropic herpesvirus]].
The [[elephant endotheliotropic herpesvirus]] (EEHV) is a member of the ''[[Proboscivirus]]'' genus, a novel clade most closely related to the mammalian [[Betaherpesvirinae|betaherpesviruses]]. As of 2011, it is responsible for as many as 70 deaths of both zoo and wild Asian elephants worldwide, especially in young calves.<ref>{{cite journal|year=2011|title=Detection and evaluation of novel herpesviruses in routine and pathological samples from Asian and African elephants: Identification of two new probosciviruses (EEHV5 and EEHV6) and two new gammaherpesviruses (EGHV3B and EGHV5)|journal=Veterinary Microbiology|volume=147|issue=1–2|pages=28–41|author1=Latimer E |author2=Zong JC |author3=Heaggans SY |author4=Richman LK |author5=Hayward GS |pmc=2976818|pmid=20579821|doi=10.1016/j.vetmic.2010.05.042}}</ref><ref>{{cite journal|year=2006|title=Endotheliotropic elephant herpes virus (EEHV) infection. The first PCR-confirmed fatal case in Asia.|journal=Veterinary Quarterly|volume=28|issue=2|pages=61–64|vauthors=Reid CE, Hildebrandt TB, Marx N, Hunt M, Thy N, Reynes JM, Schaftenaar W, Fickel J |pmid=16841568|doi=10.1080/01652176.2006.9695209|s2cid=25537428}}</ref> In particular, several incidents of calves dying from elephant endotheliotropic herpesvirus have been recorded in Myanmar.<ref>{{cite journal |last1=Oo |first1=Zaw Min |last2=Aung |first2=Ye Htut |last3=Aung |first3=Tin Tun |last4=San |first4=Nyo |last5=Tun |first5=Zaw Min |last6=Hayward |first6=Gary S. |last7=Zachariah |first7=Arun |date=January 2020 |title=Elephant Endotheliotropic Herpesvirus Hemorrhagic Disease in Asian Elephant Calves in Logging Camps, Myanmar |journal=Emerging Infectious Diseases |volume=26 |issue=1 |pages=63–69 |doi=10.3201/eid2601.190159 |issn=1080-6040 |pmc=6924905 |pmid=31855135}}</ref> The elephant [[schistosome]] is a parasitic [[trematode]] that uses the Asian elephant as a definitive host. Two other hosts may be the Indian elephant and the greater one-horned rhinoceros.<ref>{{cite journal|last1=Devkota|first1=R.|last2=Brant|first2=S.V.|last3=Thapa|first3=A.|last4=Loker|first4=E.S.|date=2014|orig-date=Published online 2012|title=Sharing schistosomes: the elephant schistosome Bivitellobilharzia nairi also infects the greater one-horned rhinoceros (Rhinoceros unicornis) in Chitwan National Park, Nepal|url=https://www.researchgate.net/publication/232744087|journal=[[Journal of Helminthology]]|volume=88|issue=1|pages=32–40|doi=10.1017/S0022149X12000697|pmid=23113960|s2cid=7039264|access-date=18 March 2024|archive-date=6 January 2018|archive-url=https://web.archive.org/web/20180106120247/https://www.researchgate.net/publication/232744087|url-status=live}}</ref>


== Conservation ==
== Conservation ==
The Asian elephant is listed on [[CITES Appendix I]].<ref name="iucn" /> It is a quintessential [[flagship species]], deployed to catalyze a range of conservation goals, including habitat conservation at landscape scales, generating public awareness on conservation issues, and mobilisation as a popular cultural icon both in India and the West.<ref name="Bowen Jones">{{cite journal |last1=Bowen-Jones |first1=E. |last2=Entwistle |first2=A. |name-list-style=amp|year=2002 |title=Identifying appropriate flagship species: The importance of culture and local contexts |journal=[[Oryx (journal)|Oryx]] |volume=36 |issue=2 |pages=189–195 |doi=10.1017/S0030605302000261 |doi-access=free}}</ref><ref name="Barua Mutiny">{{cite journal |author=Barua, M. |author2=Tamuly, J. |author3=Ahmed, R.A. |name-list-style=amp|doi=10.1080/10871200903536176 |title=Mutiny or Clear Sailing? Examining the Role of the Asian Elephant as a Flagship Species |year=2010 |journal=Human Dimensions of Wildlife |volume=15 |issue=2 |pages=145–160 |s2cid=143021377 |url=https://docs.google.com/viewer?a=v&pid=sites&srcid=ZGVmYXVsdGRvbWFpbnxtYWFuYmFydWF8Z3g6MzY0YTEyN2M1NjFkYjFmZA}}</ref><ref name=Barua2010/> A key aspect of Asian elephant conservation is connectivity, and preserving the preferred movement routes of elephants through areas of high vegetation cover and with "low human population density".<ref>{{cite journal |last1=Vasudev |first1=Divya |last2=Goswami |first2=Varun |last3=Srinivas |first3=Nishanth |last4=La Nam Syiem |first4=Biang |last5=Sarma |first5=Aishanya |title=Identifying important connectivity areas for the wide-ranging Asian elephant across conservation landscapes of Northeast India |journal=Diversity and Distributions |date=December 2021 |volume=27 |issue=12 |pages=2510–2523 |doi=10.1111/ddi.13419 |jstor=48632844 |s2cid=244245085 |doi-access=free }}</ref>
{{multiple image |direction= |image1= Indian_Elephants.jpg |image2=Asian elephant walking in Tad Lo river at golden hour, Bolaven Plateau, Laos.jpg |footer=Asian elephants are protected across various geographies. Pictured are elephants in [[Mudumalai National Park]] in India (left) and Tad Lo river, Salavan Province, [[Laos]] (right)}}
The Asian elephant is listed on [[CITES Appendix I]].<ref name="CITES"/> It is a quintessential [[flagship species]], deployed to catalyze a range of conservation goals, including habitat conservation at landscape scales, generating public awareness on conservation issues, and mobilisation as a popular cultural icon both in India and the West.<ref name="Bowen Jones">{{cite journal |last1=Bowen-Jones |first1=E. |last2=Entwistle |first2=A. |name-list-style=amp|year=2002 |title=Identifying appropriate flagship species: The importance of culture and local contexts |journal=[[Oryx (journal)|Oryx]] |volume=36 |issue=2 |pages=189–195 |doi=10.1017/S0030605302000261 |doi-access=free}}</ref><ref name="Barua Mutiny">{{cite journal |author=Barua, M. |author2=Tamuly, J. |author3=Ahmed, R.A. |name-list-style=amp |doi=10.1080/10871200903536176 |title=Mutiny or Clear Sailing? Examining the Role of the Asian Elephant as a Flagship Species |year=2010 |journal=Human Dimensions of Wildlife |volume=15 |issue=2 |pages=145–160 |bibcode=2010HDW....15..145B |s2cid=143021377 |url=https://docs.google.com/viewer?a=v&pid=sites&srcid=ZGVmYXVsdGRvbWFpbnxtYWFuYmFydWF8Z3g6MzY0YTEyN2M1NjFkYjFmZA |access-date=6 May 2012 |archive-date=8 October 2013 |archive-url=https://web.archive.org/web/20131008191925/https://docs.google.com/viewer?a=v&pid=sites&srcid=ZGVmYXVsdGRvbWFpbnxtYWFuYmFydWF8Z3g6MzY0YTEyN2M1NjFkYjFmZA |url-status=live|url-access=subscription }}</ref><ref name=Barua2010/> A key aspect of conservation is connectivity of the preferred movement routes of Asian elephants through areas with high vegetation cover and low human population density.<ref>{{cite journal |last1=Vasudev |first1=D. |last2=Goswami |first2=V. |last3=Srinivas |first3=N. |last4=La Nam Syiem |first4=B. |last5=Sarma |first5=A. |title=Identifying important connectivity areas for the wide-ranging Asian elephant across conservation landscapes of Northeast India |journal=Diversity and Distributions |date=2021 |volume=27 |issue=12 |pages=2510–2523 |doi=10.1111/ddi.13419 |jstor=48632844 |s2cid=244245085 |doi-access=free |bibcode=2021DivDi..27.2510V}}</ref>
 
The [[World Elephant Day]] is celebrated annually on 12 August since 2012. Events are organized to divulge information and to engage people about the problems that the Asian elephant is facing.<ref name="The Atlantic">{{cite news |title=World Elephant Day 2020 |url=https://www.theatlantic.com/photo/2020/08/photos-world-elephant-day-2020/615196/|author=Shelden, D. |newspaper=The Atlantic |date=2020 |access-date=6 September 2020|archive-date=7 September 2020|archive-url=https://web.archive.org/web/20200907062148/https://www.theatlantic.com/photo/2020/08/photos-world-elephant-day-2020/615196/|url-status=live}}</ref> August has been established as the Asian Elephant Awareness Month by zoos and conservation partners in the United States.<ref name=OKC>{{cite news |url=https://city-sentinel.com/2020/08/okc-zoo-to-host-2nd-annual-asian-elephant-awareness-month/ |title=OKC Zoo to host 2nd annual Asian Elephant Awareness Month |author=Shelden, D. |newspaper=The City Sentinel |date=2020 |access-date=6 September 2020 |archive-date=26 September 2020 |archive-url=https://web.archive.org/web/20200926045255/https://city-sentinel.com/2020/08/okc-zoo-to-host-2nd-annual-asian-elephant-awareness-month/ |url-status=live}}</ref>


The [[World Elephant Day]] is celebrated on 12 August since 2012. Events are organized to divulge information and to engage people about the problems that the Asian elephant is facing.<ref name="The Atlantic">{{cite news |url=https://www.theatlantic.com/photo/2020/08/photos-world-elephant-day-2020/615196/|title=World Elephant Day 2020|author=Shelden, D. |newspaper=The Atlantic|date=2020 |access-date=6 September 2020 }}</ref> August has been established as the Asian Elephant Awareness Month by zoos and conservation partners in the United States.<ref name="OKC">{{cite news |url=https://city-sentinel.com/2020/08/okc-zoo-to-host-2nd-annual-asian-elephant-awareness-month/ |title=OKC Zoo to host 2nd annual Asian Elephant Awareness Month|author=Shelden, D. |newspaper=The City Sentinel|date=2020 |access-date=6 September 2020}}</ref>
[[Karnataka|Karnataka state]] in India hosts the most Asian elephants of any known area, comprising around 20% of the total population in the country. The distribution of elephants in the state according to one estimate is roughly {{cvt|38,310|km2}}.<ref>{{cite journal |last1=Madhusudan |first1=M.D. |last2=Sharma |first2=Narayan |last3=Raghunath |first3=R. |last4=Baskaran |first4=N. |last5=Bipin |first5=C.M. |last6=Gubbi |first6=Sanjay |last7=Johnsingh |first7=A.J.T. |last8=Kulkarni |first8=Jayant |last9=Kumara |first9=Honnavalli N. |last10=Mehta |first10=Prachi |last11=Pillay |first11=Rajeev |last12=Sukumar |first12=Raman |date=July 2015 |title=Distribution, relative abundance, and conservation status of Asian elephants in Karnataka, southern India |journal=Biological Conservation |volume=187 |pages=34–40 |doi=10.1016/j.biocon.2015.04.003 |bibcode=2015BCons.187...34M |issn=0006-3207 }}</ref> In a 2013 study, an estimated 10, 000 elephants inhabited the [[Western Ghats]], and were primarily threatened by poaching and habitat fragmentation. An increase in conflict with humans was also cited as a likely issue. Conservation plans aimed to establish wildlife corridors, stop poaching of bulls, and protect or manage land area.<ref>{{cite journal |last=Baskaran |first=Nagarajan |date=2013-10-26 |title=An overview of Asian Elephants in the Western Ghats, southern India: implications for the conservation of Western Ghats ecology |journal=Journal of Threatened Taxa |volume=5 |issue=14 |pages=4854–4870 |doi=10.11609/jott.o3634.4854-70 |issn=0974-7893 |doi-access=free }}</ref> [[Project Elephant]] was initiated in 1992 as a Centrally Sponsored Scheme (CSS) by the [[Ministry of Environment, Forest and Climate Change]] of the [[Government of India]]. The project was initiated to protect the Indian elephant and its habitats and to establish dedicated elephant reserves for sustaining elephant populations.<ref name="PE">{{cite web|title=Project Elephant|work=The Official Website of Ministry of Environment, Forest and Climate Change, Government of India |publisher=Government of India|url=https://moef.gov.in/moef/division/forest-divisions-2/project-elephant-pe/introduction/index.html|access-date=1 April 2024|archive-date=21 May 2024|archive-url=https://web.archive.org/web/20240521145147/https://moef.gov.in/moef/division/forest-divisions-2/project-elephant-pe/introduction/index.html|url-status=live}}</ref>


In China, Asian elephants are under first-level protection. Yunnan province has 11 national and regional nature reserves. In total, the covered protected area in China is about {{convert|510000|km2|abbr=on}}. In 2020, the population of Asian elephants in Yunnan was estimated at around 300 individuals. As conflicts between humans and wild elephants have emerged around protected areas in the last years, the prefecture of Xishuangbanna built food bases and planted bananas and bamboo to create a better habitat.<ref name=ECNS>{{cite news |url=http://www.ecns.cn/news/2020-09-03/detail-ifzzucuv5909166.shtml|title=Solving a dilemma caused by elephants|author=Feng Shuang |newspaper=Ecns|date=2020|access-date=6 September 2020}}</ref>
The distribution of elephants in Sri Lanka is only two-fifths of what it was in the late 19th and early 20th centuries. Due to this decrease, interactions with humans occur much more frequently. During a 2003 survey, the local people expressed some form of disapproval towards the conservation of Asian elephants as farmers viewed them as pests, however, most of the participants were supportive of the idea.<ref>{{cite journal |last1=Bandara |first1=Ranjith |last2=Tisdell |first2=Clem |date=2003-04-01 |title=Comparison of rural and urban attitudes to the conservation of Asian elephants in Sri Lanka: empirical evidence |url=https://www.sciencedirect.com/science/article/pii/S0006320702002410 |journal=Biological Conservation |volume=110 |issue=3 |pages=327–342 |doi=10.1016/S0006-3207(02)00241-0 |issn=0006-3207 |access-date=20 May 2024 |archive-date=21 May 2024 |archive-url=https://web.archive.org/web/20240521145258/https://www.sciencedirect.com/science/article/abs/pii/S0006320702002410 |url-status=live |url-access=subscription }}</ref>


In Thailand, [[Salak Pra Wildlife Sanctuary|Salakpra Wildlife Sanctuary]] and [[Tham Than Lot National Park]] are protected areas hosting around 250–300 elephants, according to figures from 2013.<ref>{{cite news |url=https://www.bangkokpost.com/thailand/special-reports/1037661/its-risky-but-elephants-are-feeling-frisky|title=It's risky, but elephants are feeling frisky|author=Jeerawat na Thalang |newspaper=Bangkok Post|date=2020|access-date=6 September 2020 }}</ref> In recent years the National Park has faced issues due to encroachment and over-exploitation.<ref>{{cite report |title=Proposed Eastern Extension to Salakpra Wildlife Sanctuary |url=https://www.ecn-thailand.org/pdf/eastern-extension-report.pdf|author=Elephant Conservation Network|website=The Elephant Conservation Network|access-date=6 September 2020}}</ref>
In China, Asian elephants are under first-level protection. Yunnan province has 11 national and regional nature reserves. In total, the covered [[protected area in China]] is about {{cvt|510000|ha}}. In 2020, the population of Asian elephants in Yunnan was estimated at around 300 individuals. As conflicts between humans and wild elephants have emerged around protected areas in the last years, the prefecture of Xishuangbanna built food bases and planted bananas and bamboo to create a better habitat.<ref name="ECNS">{{cite news |url=http://www.ecns.cn/news/2020-09-03/detail-ifzzucuv5909166.shtml|title=Solving a dilemma caused by elephants|author=Shuang, F. |work=ECNS |date=2020|access-date=6 September 2020|archive-date=13 January 2021|archive-url=https://web.archive.org/web/20210113042735/http://www.ecns.cn/news/2020-09-03/detail-ifzzucuv5909166.shtml|url-status=live}}</ref>


In India, the [[National Board of Wildlife]] did a recommendation, allowing coal mining in the [[Dehing Patkai National Park|Dehing Patkai elephant reserve]] in April 2020. The decision raised concerns between students and environmental activists who launched an online campaign to stop the project.<ref name="hindustan">{{cite news |url=https://www.hindustantimes.com/india-news/assam-students-environment-activists-launch-online-campaign-to-stop-coal-mining-in-elephant-reserve/story-bvyE8cCGvsfrjnqwJHb0sO.html|title=Assam students, environment activists launch online campaign to stop coal mining in elephant reserve|author=Parashar, U. |newspaper=Hindustan Times |date=2020 |access-date=6 September 2020}}</ref>
In Thailand, Salakpra Wildlife Sanctuary and [[Tham Than Lot National Park]] are protected areas hosting around 250–300 elephants, according to figures from {{As of|2013|alt=2013}}.<ref>{{cite news|url=https://www.bangkokpost.com/thailand/special-reports/1037661/its-risky-but-elephants-are-feeling-frisky|title=It's risky, but elephants are feeling frisky|author=Jeerawat na Thalang|newspaper=Bangkok Post|date=2020|access-date=6 September 2020|archive-date=2 October 2021|archive-url=https://web.archive.org/web/20211002171558/https://www.bangkokpost.com/thailand/special-reports/1037661/its-risky-but-elephants-are-feeling-frisky|url-status=live}}</ref> In recent years the National Park has faced issues due to encroachment and over-exploitation.<ref>{{cite report|title=Proposed Eastern Extension to Salakpra Wildlife Sanctuary|url=https://www.ecn-thailand.org/pdf/eastern-extension-report.pdf|author=Elephant Conservation Network|website=The Elephant Conservation Network |access-date=6 September 2020|archive-date=21 September 2020|archive-url=https://web.archive.org/web/20200921185208/https://www.ecn-thailand.org/pdf/eastern-extension-report.pdf|url-status=live}}</ref> In India, the [[National Board of Wildlife]] recommended to allow coal mining in [[Dehing Patkai National Park]] in April 2020. The decision raised concerns between students and environmental activists who launched an online campaign to stop the project.<ref name="hindustan">{{cite news|url=https://www.hindustantimes.com/india-news/assam-students-environment-activists-launch-online-campaign-to-stop-coal-mining-in-elephant-reserve/story-bvyE8cCGvsfrjnqwJHb0sO.html|title=Assam students, environment activists launch online campaign to stop coal mining in elephant reserve|author=Parashar, U. |newspaper=Hindustan Times |date=2020|access-date=6 September 2020|archive-date=29 June 2020|archive-url=https://web.archive.org/web/20200629194454/https://www.hindustantimes.com/india-news/assam-students-environment-activists-launch-online-campaign-to-stop-coal-mining-in-elephant-reserve/story-bvyE8cCGvsfrjnqwJHb0sO.html|url-status=live}}</ref>


=== In captivity ===
== In captivity ==
[[File:Devi AsianElephant SanDiegoZoo 20071230 RockingBehaviour.gif|thumb|Rhythmic swaying behaviour is not reported in free ranging wild elephants and may be symptomatic of psychological disorders.]]
[[File:Devi AsianElephant SanDiegoZoo 20071230 RockingBehaviour.gif|thumb|Rhythmic swaying behaviour is not reported in free ranging wild elephants and may be symptomatic of psychological disorders.]]
About half of the global zoo elephant population is kept in European zoos, where they have about half the median life span of [[conspecifics]] in protected populations in range countries. This discrepancy is clearest in Asian elephants: infant mortality is twice that seen in Burmese timber camps, and adult survivorship in zoos has not improved significantly in recent years. One risk factor for Asian zoo elephants is being moved between institutions, with early removal from the mother tending to have additional adverse effects. Another risk factor is being born into a zoo rather than being imported from the wild, with poor adult survivorship in zoo-born Asians apparently being conferred prenatally or in early infancy. Likely causes for compromised survivorship is [[Stress (biology)|stress]] and/or [[obesity]].<ref>{{cite journal |author=Clubb, R.|author2=Rowcliffe, M.|author3=Lee, P. |author4=Mar, K. U. |author5=Moss, C.|author6=Mason, G. J. |name-list-style=amp|year=2008 |journal=Science |title=Compromised Survivorship in Zoo Elephants |volume=322 |issue=5908 |page=1649 |pmid=19074339 |hdl=1893/974|bibcode=2008Sci...322.1649C |doi=10.1126/science.1164298 |s2cid=30756352|url=https://dspace.stir.ac.uk/bitstream/1893/974/1/Clubbtext.pdf|hdl-access=free }}</ref> Foot problems are commonly observed in captives elephants. These are related to lack of exercise, long hours standing on hard substrates, and contamination resulting from standing in their dung. Many of the problems are treatable. However, mistreatment may lead to serious disability or death.<ref>{{cite book |author=Csuti, B. A.|author2=Bechert, U. |author3=Sargent, E. L. |name-list-style=amp|year=2001|title=The Elephant's foot : prevention and care of foot conditions in captive Asian and African elephants |publisher=Iowa State University Press |location=Iowa}}</ref>
About half of the global zoo elephant population is kept in European zoos, where they have less than half (18.9 years) the median life span of [[conspecifics]] (41.6 years) in protected populations in range countries. This discrepancy is clearest in Asian elephants: infant mortality is more than two to three times that seen in Burmese timber camps, and adult survivorship in zoos has not improved significantly in recent years. One risk factor for Asian zoo elephants is being moved between institutions, with early removal from the mother tending to have additional adverse effects. Another risk factor is being born into a zoo rather than being imported from the wild, with poor adult survivorship in zoo-born Asians apparently being conferred prenatally or in early infancy. Likely causes for compromised survivorship is [[Stress (biology)|stress]] and/or [[obesity]].<ref>{{cite journal |author=Clubb, R. |author2=Rowcliffe, M. |author3=Lee, P. |author4=Mar, K. U. |author5=Moss, C. |author6=Mason, G. J. |name-list-style=amp |year=2008 |journal=Science |title=Compromised Survivorship in Zoo Elephants |volume=322 |issue=5908 |page=1649 |pmid=19074339 |hdl=1893/974 |bibcode=2008Sci...322.1649C |doi=10.1126/science.1164298 |s2cid=30756352 |url=https://dspace.stir.ac.uk/bitstream/1893/974/1/Clubbtext.pdf |hdl-access=free |access-date=9 December 2012 |archive-date=14 May 2014 |archive-url=https://web.archive.org/web/20140514224814/https://dspace.stir.ac.uk/bitstream/1893/974/1/Clubbtext.pdf |url-status=live}}</ref> Foot problems are commonly observed in captive elephants. These are related to lack of exercise, long hours standing on hard substrates, and contamination resulting from standing in their dung. Many of these problems are treatable. However, mistreatment may lead to serious disability or death.<ref>{{cite book |last1=Roocroft |first1=Alan |last2=Oosterhuis |first2=James |date=December 2000 |chapter=Foot Care for Captive Elephants |chapter-url=http://dx.doi.org/10.1002/9780470292150.ch5 |title=The Elephant's Foot |doi=10.1002/9780470292150.ch5 |pages=1–5 |isbn=978-0-8138-2820-6 |access-date=19 May 2024 |archive-date=21 May 2024 |archive-url=https://web.archive.org/web/20240521145129/https://onlinelibrary.wiley.com/doi/10.1002/9780470292150.ch5 |url-status=live}}</ref>


Demographic analysis of captive Asian elephants in [[North America]] indicates that the population is not self-sustaining. First year mortality is nearly 30 per cent, and [[fecundity]] is extremely low throughout the prime reproductive years.<ref>{{cite journal|author=Wiese, R. J. |title=Asian elephants are not self-sustaining in North America |doi=10.1002/1098-2361(2000)19:5<299::AID-ZOO2>3.0.CO;2-Z |year=2000 |journal=Zoo Biology |volume=19 |issue=5 |pages=299–309}}</ref> Data from North American and European regional [[studbook]]s from 1962 to 2006 were analysed for deviation of the birth and juvenile death sex ratio. Of 349 captive calves born, 142 died prematurely. They died within one month of birth, major causes being [[stillbirth]] and [[infanticide]] by either the calf's mother or by one of the exhibition mates. The sex ratio of stillbirths in Europe was found to have a tendency for excess of males.<ref>{{cite journal|author=Saragusty, J. |author2=Hermes, R. |author3=Goritz, F. |author4=Schmitt, D.L. |author5=Hildebrandt, T. B. |name-list-style=amp|year=2009 |url=http://www.elephantsincanada.com/reports-and-papers/skewed-birth-sex-ratio-and-premature-mortality-in-elephants |title=Skewed Birth Sex Ratio and Premature Mortality in Elephants|journal= Animal Reproduction Science |volume=115 |issue=1–4 |pages= 247–254|doi=10.1016/j.anireprosci.2008.10.019|pmid=19058933}}</ref>
Demographic analysis of captive Asian elephants in [[North America]] indicates that the population is not self-sustaining. First year mortality is nearly 30 per cent, and [[fecundity]] is extremely low throughout the prime reproductive years.<ref>{{cite journal|author=Wiese, R. J. |title=Asian elephants are not self-sustaining in North America |doi=10.1002/1098-2361(2000)19:5<299::AID-ZOO2>3.0.CO;2-Z |year=2000 |journal=Zoo Biology |volume=19 |issue=5 |pages=299–309|doi-access=free}}</ref> Data from North American and European regional [[studbook]]s from 1962 to 2006 were analysed for deviations in the birth and juvenile death sex ratios. Of 349 captive calves born, 142 died prematurely. They died within one month of birth, major causes being [[stillbirth]] and [[infanticide]] by either the calf's mother or by one of the exhibition mates. The sex ratio of stillbirths in Europe was found to have a tendency for excess of males.<ref>{{cite journal |author=Saragusty, J. |author2=Hermes, R. |author3=Goritz, F. |author4=Schmitt, D.L. |author5=Hildebrandt, T. B. |name-list-style=amp |year=2009 |url=http://www.elephantsincanada.com/reports-and-papers/skewed-birth-sex-ratio-and-premature-mortality-in-elephants |title=Skewed birth sex ratio and premature mortality in elephants |journal=Animal Reproduction Science |volume=115 |issue=1–4 |pages=247–254 |doi=10.1016/j.anireprosci.2008.10.019 |pmid=19058933 |access-date=9 December 2012 |archive-date=21 June 2013 |archive-url=https://web.archive.org/web/20130621054118/http://www.elephantsincanada.com/reports-and-papers/skewed-birth-sex-ratio-and-premature-mortality-in-elephants |url-status=live|url-access=subscription}}</ref>
 
=== Handling methods ===
[[File:Indian-Elephant-444.jpg|thumb|Elephants are used for safari tourism in some Asian countries]]
Young elephants are captured from the wild and illegally imported to Thailand from [[Myanmar]] for use in the tourism industry; calves are used mainly in amusement parks and are trained to perform various stunts for tourists.<ref name=Stiles2009/> The calves are often subjected to a 'breaking in' process, which may involve being tied up, confined, starved, beaten and tortured; as a result, two-thirds may perish.<ref name=guard120724>{{cite news |url=https://www.theguardian.com/environment/2012/jul/24/tourism-elephant-trade-burma-thailand |title=Tourism driving illegal elephant trade in Burma and Thailand – video |work=The Guardian |date=2012 |access-date=11 December 2016 |archive-date=2 December 2016 |archive-url=https://web.archive.org/web/20161202025152/https://www.theguardian.com/environment/2012/jul/24/tourism-elephant-trade-burma-thailand |url-status=live}}</ref> Handlers use a technique known as the [[training crush]], in which "handlers use sleep-deprivation, hunger, and thirst to 'break' the elephants' spirit and make them submissive to their owners"; moreover, handlers drive nails into the elephants' ears and feet.<ref name=Hile>{{cite web|url=http://news.nationalgeographic.com/news/2002/10/1016_021016_phajaan.html|archive-url=https://web.archive.org/web/20021018085547/http://news.nationalgeographic.com/news/2002/10/1016_021016_phajaan.html|archive-date=18 October 2002|title=Activists Denounce Thailand's Elephant 'Crushing' Ritual |last=Hile|first=J.|year=2002 |publisher=[[National Geographic Society]] |access-date=1 October 2014|quote=Just before dawn in the remote highlands of northern Thailand, west of the village Mae Jaem, a four-year-old elephant bellows as seven village men stab nails into her ears and feet. She is tied up and immobilized in a small, wooden cage. Her cries are the only sounds to interrupt the otherwise quiet countryside. The cage is called a 'training crush.' It's the centerpiece of a centuries-old ritual in northern Thailand designed to domesticate young elephants. In addition to beatings, handlers use sleep-deprivation, hunger, and thirst to 'break' the elephants' spirit and make them submissive to their owners.}}</ref>


== In culture ==
== In culture ==
{{Further|Elephants in Kerala culture|Cultural depictions of elephants}}
{{Further|Elephants in Kerala culture|Cultural depictions of elephants}}
{{Further|Captive elephants}}
{{Further|Captive elephants}}
[[File:Indian-Elephant-444.jpg|thumb|Elephants are used for safari tourism in some Asian countries]]
[[File:Thajavur Ganesha.jpg|thumb|upright|[[Ganesha]] on his [[vahana]] ''mūṣaka'' the rat, c. 1820]]
[[File:ElephantTrainingCamp.jpg|thumb|At this elephant training camp, [[Captivity (animal)|captive]] elephants are taught to handle logs.]]
The Asian elephant is the [[List of national animals|national animal]] of Thailand and Laos.<ref>{{cite journal |last=Han |first=Jianghua |date=2019-07-03 |title=The Study of Thai Elephant Culture Based on the "Elephant Metaphors" in Thai Idioms |journal=Comparative Literature: East & West |volume=3 |issue=2 |pages=148–162 |doi=10.1080/25723618.2019.1701306 |issn=2572-3618 |doi-access=free }}</ref><ref>{{cite web|url=https://southeastasiaglobe.com/thailand-and-laos-elephant/|title=Thailand and Laos elephant|work=South East Asia Globe|date=28 February 2022|access-date=1 December 2023|archive-date=1 October 2023|archive-url=https://web.archive.org/web/20231001045716/https://southeastasiaglobe.com/thailand-and-laos-elephant/|url-status=live}}</ref> It has also been declared as the [[National symbols of India|national heritage animal]] of India.<ref>{{cite journal |last=Sukumar |first=Raman |date=26 July 2016 |title=Iconic Fauna of Heritage Significance in India |url=http://insa.nic.in/writereaddata/UpLoadedFiles/IJHS/Vol51_2016_2_2_Art08.pdf |journal=Indian Journal of History of Science |volume=51 |issue=2.2 |doi=10.16943/ijhs/2016/v51i2.2/48450 |issn=0019-5235 |access-date=21 May 2024 |archive-date=4 February 2023 |archive-url=https://web.archive.org/web/20230204160424/https://insa.nic.in/writereaddata/UpLoadedFiles/IJHS/Vol51_2016_2_2_Art08.pdf |url-status=live }}</ref> Bones of Asian elephants [[Excavation (archaeology)|excavated]] at [[Mohenjo-daro]] in the [[Indus Valley]] indicate that they were [[tamed]] in the [[Indus Valley Civilisation]] and used for work. Decorated elephants are also depicted on seals and were modelled in clay.<ref>{{cite book |last1=Baker |first1=Iljas |url=https://www.fao.org/4/ad031e/ad031e0g.htm |title=Giants on Our Hands: Proceedings of the International Workshop on the Domesticated Asian Elephant, Bangkok, Thailand, 5 to 10 February 2001 |last2=Kashio |first2=Masakazu |date=2002 |publisher=FAO Regional Office for Asia and the Pacific |isbn=978-974-90757-1-5 |access-date=21 May 2024 |archive-date=21 May 2024 |archive-url=https://web.archive.org/web/20240521145656/https://www.fao.org/4/ad031e/ad031e0g.htm |url-status=live }}</ref> The Asian elephant became a [[siege engine]], a mount in war, a [[status symbol]], a [[Working animal|beast of burden]], and an elevated platform for hunting during historical times in [[South Asia]].<ref name="IWH3">{{cite book |author=Rangarajan, M. |year=2001 |title=India's Wildlife History |publisher=Permanent Black |location=Delhi |chapter=The Forest and the Field in Ancient India |pages=1–10 |isbn=978-8-178-24140-1 |chapter-url=https://books.google.com/books?id=a89yMml_etQC&pg=PA1 |access-date=19 March 2018 |archive-date=17 March 2024 |archive-url=https://web.archive.org/web/20240317064905/https://books.google.com/books?id=a89yMml_etQC&pg=PA1#v=onepage&q&f=false |url-status=live }}</ref>
Bones of Asian elephants [[Excavation (archaeology)|excavated]] at [[Mohenjo-daro]] in the [[Indus Valley]] indicate that they were [[tamed]] in the [[Indus Valley civilization]] and used for work. Decorated elephants are also depicted on seals and were modelled in clay.<ref>{{cite book |last=McIntosh |first=J.R. |title=The Ancient Indus Valley: New Perspectives |year=2008 |publisher=ABC-CLIO |location=Santa Barbara, Denver, Oxford |isbn=978-1-57607-907-2 |chapter=Elephant |page=131 |chapter-url=https://books.google.com/books?id=1AJO2A-CbccC&pg=PA131}}</ref>


The Asian elephant became a [[siege engine]], a mount in war, a [[status symbol]], a [[Working animal|beast of burden]], and an elevated platform for hunting during historical times in [[South Asia]].<ref name="IWH3">{{cite book |author=Rangarajan, M. |year=2001 |title=India's Wildlife History |publisher=Permanent Black |location=Delhi |chapter=The Forest and the Field in Ancient India |pages=1–10 |isbn=9788178241401 |chapter-url=https://books.google.com/books?id=a89yMml_etQC&pg=PA1}}</ref>
Asian elephants have been captured from the wild and tamed for use by humans. Elephants can remember tone, melody, and words, allowing them to recognise more than 20 verbal commands.<ref>{{Cite book |last=Lim |first=Teckwyn |url=https://www.editions.ird.fr/produit/696/9782709929943/composing-worlds-with-elephants |title=Composing Worlds with Elephants: Interdisciplinary Dialogues |publisher=IRD Éditions |year=2023 |isbn=978-2-7099-2993-6 |editor-last=Lainé |editor-first=De Nicolas |location=Marseille |pages=137–155 |chapter=From the mouth of the mahout: a review of elephant command words |editor-last2=Keil |editor-first2=P. G. |editor-last3=Khatijah Rahmat |chapter-url=https://www.researchgate.net/publication/387795167}}</ref> Their ability to work under instruction makes them particularly useful for carrying heavy objects. They have been used particularly for [[Lumber|timber]]-carrying in jungle areas. Other than their work use, they have been used in war, in ceremonies, and for carriage.<ref>{{cite journal |last1=Liehrmann |first1=Océane |last2=Crawley |first2=Jennie A. H. |last3=Seltmann |first3=Martin W. |last4=Feillet |first4=Sherine |last5=Nyein |first5=U. Kyaw |last6=Aung |first6=Htoo Htoo |last7=Htut |first7=Win |last8=Lahdenperä |first8=Mirkka |last9=Lansade |first9=Léa |last10=Lummaa |first10=Virpi |date=2021-07-29 |title=Handler familiarity helps to improve working performance during novel situations in semi-captive Asian elephants |journal=Scientific Reports |language=en |volume=11 |issue=1 |page=15480 |doi=10.1038/s41598-021-95048-w |pmid=34326446 |pmc=8322261 |issn=2045-2322}}</ref> It is reported that war elephants are still used by the [[Kachin Independence Army]] (KIA) in [[Kachin State]] in northern [[Myanmar]] against Myanmar's military. The KIA use about four dozen elephants to carry supplies.<ref>{{cite news |last1=Winn |first1=P. |title=War elephants still exist. But only in one forbidding place |url=https://www.pri.org/stories/2017-02-27/war-elephants-still-exist-only-one-forbidding-place |access-date=1 March 2017 |work=Public Radio International (PRI) |date=2017 |archive-date=1 March 2017 |archive-url=https://web.archive.org/web/20170301001718/https://www.pri.org/stories/2017-02-27/war-elephants-still-exist-only-one-forbidding-place |url-status=live }}</ref>


Asian elephants have been captured from the wild and tamed for use by humans. Their ability to work under instruction makes them particularly useful for carrying heavy objects. They have been used particularly for [[Lumber|timber]]-carrying in jungle areas. Other than their work use, they have been used in war, in ceremonies, and for carriage. It is reported that war elephants are still in use by the [[Kachin Independence Army]] (KIA) to take control of [[Kachin State]] in northern [[Myanmar]] from Myanmar's military. The KIA use about four dozen elephants to carry supplies.<ref>{{cite news |last1=Winn|first1=P. |title=War elephants still exist. But only in one forbidding place|url=https://www.pri.org/stories/2017-02-27/war-elephants-still-exist-only-one-forbidding-place |access-date=1 March 2017 |work=Public Radio International (PRI) |date=2017}}</ref>
The Asian elephant plays an important part in the culture of the [[Indian subcontinent|subcontinent]] and beyond, being featured prominently in the ''[[Panchatantra]]'' fables and the [[Buddhist]] ''[[Jataka tales|Jataka]]'' tales. They play a major role in [[Hinduism]]: the god [[Ganesha]]'s head is that of an elephant, and the "blessings" of a temple elephant are highly valued. Elephants are frequently used in [[parade|processions]] where the animals are adorned with festive outfits.<ref name="Nila">{{cite book |last=Rajamangalam) |first=Nīlakaṇṭha |title=The Elephant-lore of the Hindus: The Elephant-sport (Matanga-lila) of Nilakantha |date=1985 |publisher=Motilal Banarsidass Publications |isbn=978-8-12080-005-2 |pages=[https://books.google.com/books?id=u6-41berm3IC 1-10]}}</ref>


The Asian elephant plays an important part in the culture of the [[Indian subcontinent|subcontinent]] and beyond, being featured prominently in the ''[[Panchatantra]]'' fables and the [[Buddhist]] ''[[Jataka tales|Jataka]]'' tales. They play a major role in [[Hinduism]]: the god [[Ganesha]]'s head is that of an elephant, and the "blessings" of a temple elephant are highly valued. Elephants are frequently used in [[parade|processions]] where the animals are adorned with festive outfits.
The Asian elephant is depicted in several Indian manuscripts and treatises with notable amongst these including ''[[Matanga Lila]]'' (elephant sport) of Nilakantha.<ref name="Nila"/> The manuscript ''[[Hastividyarnava]]'' is from [[Assam]] in northeast India.<ref>{{cite book |last=Sharma |first=Jayeeta |url=https://books.google.com/books?id=W2dtxgZba6MC |title=Empire's Garden: Assam and the Making of India |date=August 2011 |publisher=Duke University Press |isbn=978-0-82235-049-1 |page=25 |access-date=15 May 2024 |archive-date=24 May 2022 |archive-url=https://web.archive.org/web/20220524120054/https://books.google.com/books?id=W2dtxgZba6MC |url-status=live }}</ref> In the [[Burmese zodiac#Weekdays|Burmese, Thai and Sinhalese animal and planetary zodiac]], the Asian elephant, both tusked and tuskless, are the fourth and fifth animal zodiacs of the [[Myanmar|Burmese]], the fourth animal zodiac of the [[Thai people|Thai]], and the second animal zodiac of the [[Sinhalese people]] of Sri Lanka.<ref>{{cite book |author=Upham, E. |year=1829 |url=https://archive.org/details/historydoctrineo00upha |title=The History and Doctrine of Budhism: Popularly Illustrated: with Notices of the Kappooism, Or Demon Worship, and of the Bali, Or Planetary Incantations, of Ceylon |location=London |publisher=R. Ackermann}}</ref><ref>{{cite journal |last=Ling |first=Trevor |date=March 1971 |title=Sinhalese buddhism in regent anthropological writing: Some implications |url=http://www.tandfonline.com/doi/abs/10.1016/0048-721X%2871%2990007-8 |journal=Religion |language=en |volume=1 |issue=1 |pages=49–59 |doi=10.1016/0048-721X(71)90007-8 |issn=0048-721X |access-date=15 May 2024 |archive-date=15 May 2024 |archive-url=https://web.archive.org/web/20240515093741/https://www.tandfonline.com/doi/abs/10.1016/0048-721X(71)90007-8 |url-status=live |url-access=subscription }}</ref> Similarly, the [[Pig (zodiac)|elephant]] is the twelfth animal zodiac in the [[Chinese zodiac|Dai animal zodiac]] of the [[Dai people]] in southern China.<ref>{{cite web |url=https://www.warriortours.com/intro/zodiac.htm |title=Chinese Zodiac |archive-url=https://web.archive.org/web/20180915225846/https://www.warriortours.com/intro/zodiac.htm |archive-date=15 September 2018 |publisher=Warriortours |access-date=12 June 2017}}</ref>
 
The Asian elephant is depicted in several Indian manuscripts and treatises. Notable amongst these is the [[Matanga Lila]] (elephant sport) of Nilakantha.<ref>{{cite book |last=Edgerton |first=F. |title=The Elephant-Lore of the Hindus: the Elephant-sport (Matanga-lila) of Nilakantha |year=1985 |publisher=Motilal Banarsidass |location=Delhi |isbn=978-8120800052 |edition=Reprint of 1931}}</ref> The manuscript [[Hastividyarnava]] is from [[Assam]] in northeast India.
 
In the [[Burmese zodiac#Weekdays|Burmese, Thai and Sinhalese animal and planetary zodiac]], the Asian elephant, both tusked and tuskless, are the fourth and fifth animal zodiacs of the [[Myanmar|Burmese]], the fourth animal zodiac of the [[Thai people|Thai]], and the second animal zodiac of the [[Sinhalese people]] of Sri Lanka.<ref>Upham, E. (1829). [https://archive.org/details/historydoctrineo00upha The History and Doctrine of Budhism: Popularly Illustrated: with Notices of the Kappooism, Or Demon Worship, and of the Bali, Or Planetary Incantations, of Ceylon]. London: R. Ackermann.</ref> Similarly, the [[Pig (zodiac)|elephant]] is the twelfth animal zodiac in the [[Chinese zodiac|Dai animal zodiac]] of the [[Dai people]] in southern China.<ref>[https://www.warriortours.com/intro/zodiac.htm Chinese Zodiac] {{Webarchive|url=https://web.archive.org/web/20180915225846/https://www.warriortours.com/intro/zodiac.htm |date=15 September 2018 }}. Warriortours.com. Retrieved on 12 June 2017.</ref>


==See also==
==See also==
{{Div col start}}
* [[Elephants in Thailand]]
* [[Elephants in Thailand]]
* [[Endangered species]]
* [[Endangered species]]
Line 210: Line 195:
* [[War elephant]]
* [[War elephant]]
* [[White elephant]]
* [[White elephant]]
{{Div col end}}
{{clear}}
{{clear}}


==References==
==References==
{{Reflist|30em}}
{{Reflist}}
<!-- Biol. Lett.2:451 doi:10.1098/rsbl.2006.0467 molecular data confirms validity and distinctness of asurus. Paper had controversy (BiolLett3:55,57,60) but not about asurus data -->
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* {{cite journal |author1=Bandara, Ranjith  |author2=Clem Tisdell  |name-list-style=amp| year = 2004 | title = The net benefit of saving the Asian elephant a policy and contingent valuation study | journal = Ecological Economics | volume = 48 | issue = 1 | pages = 93–107 | doi = 10.1016/j.ecolecon.2003.01.001}}
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==Further reading==
=== Bibliography ===
* Gilchrist, W. (1851) ''A Practical Treatise on the Treatment of the Diseases of the Elephant, Camel & Horned Cattle: with instructions for improving their efficiency; also, a description of the medicines used in the treatment of their diseases; and a general outline of their anatomy''. Calcutta: Military Orphan Press
* {{Cite book |last=Deraniyagala |first=Paulus Edward Pieris |year=1955 |title=Some Extinct Elephants, Their Relatives, and the Two Living Species |url=https://books.google.com/books?id=wAhDAAAAYAAJ |location=Ceylon |publisher=Department of National Museums }}
 
== Further reading ==
* {{cite journal |author1=Bandara, Ranjith  |author2=Clem Tisdell  |name-list-style=amp| year = 2004 | title = The net benefit of saving the Asian elephant a policy and contingent valuation study | journal = Ecological Economics | volume = 48 | issue = 1 | pages = 93–107 | doi = 10.1016/j.ecolecon.2003.01.001|bibcode=2004EcoEc..48...93B |url=https://ageconsearch.umn.edu/record/48968/files/WP87.pdf }}
*{{cite book|author1=Miall, L. C. |author2=Greenwood, F. |year=1878 |title=Anatomy of the Indian Elephant |publisher= Macmillan and Co.| place= London| url=https://archive.org/details/anatomyofindiane00mial}}
*{{cite book|author1=Miall, L. C. |author2=Greenwood, F. |year=1878 |title=Anatomy of the Indian Elephant |publisher= Macmillan and Co.| place= London| url=https://archive.org/details/anatomyofindiane00mial}}
*Williamson, J.H.  (1950).  Elephant Bill.


==External links==
==External links==
* [http://www.saveelephant.org/ Save Elephant Foundation]
* [http://www.saveelephant.org/ Save Elephant Foundation]
* [http://www.elephantconservation.org International Elephant Foundation]
* [http://www.elephantconservation.org International Elephant Foundation]
* [http://www.elefantasia.org ElefantAsia: ''Protecting the Asian elephant'']
* {{usurped|1=[https://archive.today/20121209010527/http://www.elefantasia.org/ ElefantAsia: "Protecting the Asian elephant"]}}
* [http://www.asianelephant.net/ Asian Elephants at the Zoological Gardens of the World]
* [http://www.asianelephant.net/ Asian Elephants at the Zoological Gardens of the World]
* [http://elephant.elehost.com/ Elephant Information Repository] {{Webarchive|url=https://web.archive.org/web/20170711171808/http://elephant.elehost.com/ |date=11 July 2017 }}
* [http://elephant.elehost.com/ Elephant Information Repository] ({{Webarchive|url=https://web.archive.org/web/20170711171808/http://elephant.elehost.com/ |date=11 July 2017 }})
* [http://panda.org/elephants/asian WWF—Asian elephant species profile]
* [http://panda.org/elephants/asian WWF—Asian elephant species profile]
* [http://nationalzoo.si.edu/Animals/AsianElephants/ National Zoo Facts on Asian Elephant and a Webcam of the Asian Elephant exhibit]
* [http://nationalzoo.si.edu/Animals/AsianElephants/ National Zoo Facts on Asian Elephant and a Webcam of the Asian Elephant exhibit]
* [https://web.archive.org/web/20111224032926/http://www.eia-international.org/our-work/environmental-crime-and-governance/illegal-wildlife-trade/elephants Environmental Investigation Agency: ''Illegal Wildlife Trade'' : ''Elephants'']
* [https://web.archive.org/web/20111224032926/http://www.eia-international.org/our-work/environmental-crime-and-governance/illegal-wildlife-trade/elephants Environmental Investigation Agency: "Illegal Wildlife Trade: Elephants"]


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[[Category:Asian elephants| ]]
 
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Latest revision as of 19:38, 25 March 2026


Asian elephant
A tusked bull
Bandipur National Park, Karnataka, India
A cow, juveniles and a calf
Yala National Park, Sri Lanka
CITES Appendix I (CITES)[2]
Scientific classification edit
: [[Template:Taxonomy/Elephas]]
Species:
Binomial name
Template:Taxonomy/ElephasElephas maximus[3]
Subspecies[3]
   Historical range
   Range in early 21st century

The Asian elephant (Elephas maximus), also known as the Asiatic elephant, is the only living species in the genus Elephas. It is the largest living land animal in Asia and the second largest living elephantid in the world. It is characterised by its long trunk with a single finger-like process; large tusks in males; laterally folded large ears and wrinkled grey skin that is partly depigmented on the trunk, ears or neck. Adult males average 4 t (4.4 short tons) in weight and females 2.7 t (3.0 short tons). It has a large and well developed neocortex of the brain, is highly intelligent and self-aware, being able to display behaviours associated with grief, learning and greeting. Three subspecies are recognised—E. m. maximus, E. m. indicus and E. m. sumatranus.

The Asian elephant is distributed in the Indian subcontinent and Southeast Asia, from India in the west to Borneo in the east, and Nepal in the north to Sumatra in the south. It inhabits grasslandstropical evergreen forests, semi-evergreen forests, moist deciduous forests, dry deciduous forests and dry thorn forests. It is herbivorous, eating about 150 kg (330 lb) of vegetation per day. Cows and calves form groups, while males remain solitary or form "bachelor groups" with other males. During the breeding season, males temporarily join female groups to mate. Wild Asian elephants live to be about 60 years old. While female captive elephants are recorded to have lived beyond 60 years when kept in semi-natural surroundings, Asian elephants die at a much younger age in captivity; captive populations are declining due to a low birth and high death rate.

Since 1986, the Asian elephant has been listed as Endangered on the IUCN Red List, as the population has declined by at least 50 per cent over the last three elephant generations, which is about 60–75 years. It is primarily threatened by loss of habitat, habitat degradation, fragmentation and poaching. The earliest indications of captive use of Asian elephants are engravings on seals of the Indus Valley civilisation dated to the 3rd millennium BC.

Taxonomy[edit | edit source]

Elephant in Sri Lanka
Elephant in Kaziranga National Park, India
Elephant in Sumatra

Carl Linnaeus proposed the scientific name Elephas maximus in 1758 in the 10th edition of Systema Naturae, the foundational work of modern zoological taxonomy.[4] Carl Linnaeus based his description on a variety of sources and specimens, some of which were later shown to be African elephants. Linnaeus's description heavily relied on a 1693 description of an elephant skeleton by John Ray. This skeleton still exists within the collection of the Natural History Museum of the University of Florence, and almost certainly represents that of Hansken, a female Asian elephant from Sri Lanka that toured Europe in the 17th century.[5][6] This specimen was declared to be the lectotype specimen for the species in 2014.[6] Elephas indicus was proposed by Georges Cuvier in 1798, who described an elephant from India.[7] Coenraad Jacob Temminck named an elephant from Sumatra Elephas sumatranus in 1847.[8] Frederick Nutter Chasen classified all three as subspecies of the Asian elephant in 1940.[9] These three subspecies are currently recognised as valid taxa.[1][10] Results of phylogeographic and morphological analyses indicate that the Sri Lankan and Indian elephants are not distinct enough to warrant classification as separate subspecies.[11]

Three subspecies are recognised:[1][10]

Sri Lankan elephants are the largest subspecies. Their skin colour is darker than of E. m. indicus and of E. m. sumatranus with larger and more distinct patches of depigmentation on ears, face, trunk and belly.[12] The skin color of the Indian elephant is generally grey and lighter than that of E. m. maximus but darker than that of E. m. sumatranus.[10]

A potential fourth subspecies, the Borneo elephant (Elephas maximus borneensis), occurs in Borneo's northeastern parts, primarily in Sabah (Malaysia), and sometimes in Kalimantan (Indonesia).[13] It was proposed by Paules Deraniyagala in 1950, who described an elephant in an illustration published in the National Geographic magazine, but not as a living elephant in accordance with the rules of the International Code of Zoological Nomenclature.[14][15] These elephants living in northern Borneo are smaller than all the other subspecies, but had larger ears, a longer tail, and straight tusks.[16] Results of genetic analysis indicate that their ancestors separated from the mainland population about 300,000 years ago.[17] A study in 2003, using mitochondrial DNA analysis and microsatellite data, indicated that the Borneo elephant population is derived from stock that originated in the region of the Sunda Islands, and suggests that the Borneo population has been separated from the other elephant populations of southeast Asia since the Pleistocene.[18]

The following Asian elephants were proposed as extinct subspecies, but are now considered synonymous with the Indian elephant:[10]

Evolution[edit | edit source]

Template:Cladogram

The genus Elephas, of which the Asian elephant is the only living member, is the closest relative of the extinct mammoths. The two groups are estimated to have split from each other around 7 million years ago.[23] Elephas originated in Sub-Saharan Africa during the Pliocene and spread throughout Africa before expanding into the southern half of Asia.[24] The earliest Elephas species, Elephas ekorensis, is known from the Early Pliocene of East Africa, around 5–4.2 million years ago.[25] The oldest remains of the genus in Asia are known from the Siwalik Hills in the Indian subcontinent, dating to the late Pliocene, around 3.6 to 3.2 million years ago, assigned to the species Elephas planifrons.[26] The modern Asian elephant is suggested to have evolved from the species Elephas hysudricus, which first appeared at the beginning of the Early Pleistocene around 2.6 million years ago, and is primarily known from remains of Early-Middle Pleistocene age found on the Indian subcontinent.[27] Skeletal remains of E. m. asurus have been recorded from the Middle East: Iran, Iraq, Syria, and Turkey from periods dating between at least 1800 BC and likely 700 BC.[28]

Description[edit | edit source]

Young adult male Asian elephant skeleton compared to a human
Depigmented skin on the forehead and ears of an Asian elephant

In general, the Asian elephant is smaller than the African bush elephant and has the highest body point on the head. The back is convex or level. The ears are small with dorsal borders folded laterally. It has up to 20 pairs of ribs and 34 caudal vertebrae. The feet have five nail-like structures on each forefoot, and four on each hind foot.[10] The forehead has two hemispherical bulges, unlike the flat front of the African elephants.[29] Its long trunk or proboscis has only one fingerlike tip, in contrast to the African elephants, which have two.[10] Hence, the Asian species relies more on wrapping around a food item and squeezing it into its mouth, rather than grasping with the tip. Asian elephants have more muscle coordination and can perform more complex tasks.[30]

The nail-like structures on the toes of an Asian elephant

Cows usually lack tusks; if tusks—in that case, called "tushes"—are present, they are barely visible and only seen when the mouth is open.[31] The enamel plates of the molars are greater in number and closer together in Asian elephants.[32] Some bulls may also lack tusks; these individuals are called "makhnas" and are especially common among the Sri Lankan elephant population.[33] A tusk from an 11 ft (3.4 m) tall elephant killed by Sir Victor Brooke measured 8 ft (2.4 m) in length, and nearly 17 in (43 cm) in circumference, and weighed 90 lb (41 kg). This tusk's weight is, however, exceeded by the weight of a shorter tusk of about 6 ft (1.8 m) in length, which weighed 100 lb (45 kg), and there have reportedly been tusks weighing over 150 lb (68 kg).[34]

Skin colour is usually grey, and may be masked by soil because of dusting and wallowing. Their wrinkled skin is movable and contains many nerve centres. It is smoother than that of African elephants and may be depigmented on the trunk, ears, or neck. The epidermis and dermis of the body average 18 mm (0.71 in) thick; skin on the dorsum is 30 mm (1.2 in) thick providing protection against bites, bumps, and adverse weather. Its folds increase surface area for heat dissipation. They can tolerate cold better than excessive heat. Skin temperature varies from 24 to 32.9 °C (75.2 to 91.2 °F). Body temperature averages 35.9 °C (96.6 °F).[10]

Size[edit | edit source]

On average, when fully-grown, bulls are about 2.75 m (9 ft 0 in) tall at the shoulder and 4.0 t (4.4 short tons) in weight, while cows are smaller at about 2.40 m (7 ft 10 in) at the shoulder and 2.7 t (3.0 short tons) in weight.[35][36][37] Sexual dimorphism in body size is relatively less pronounced in Asian elephants than in African bush elephants; with bulls averaging 15% and 23% taller in the former and latter respectively.[35] Length of body and head including trunk is 5.5–6.5 m (18–21 ft) with the tail being 1.2–1.5 m (3 ft 11 in – 4 ft 11 in) long.[10] The largest bull elephant ever recorded was shot by the Maharajah of Susang in the Garo Hills of Assam, India, in 1924, it weighed an estimated 7 t (7.7 short tons), stood 3.43 m (11.3 ft) tall at the shoulder and was 8.06 m (26.4 ft) long from head to tail.[35][38][39] The Raja Gaj elephant in Bardia National Park was estimated to be 3.4 m (11.3 ft) tall at the shoulder and one of the biggest Asian bull elephants.[40] There are reports of larger individuals as tall as 3.66 m (12.0 ft) and 2.92 m (9 ft 7 in), and 7.99 m (26.2 ft) long from head to tail.[34]

Distribution and habitat[edit | edit source]

Asian elephants are distributed throughout the Indian subcontinent and Southeast Asia, from India in the west, to Borneo in the east, and Nepal in the north, to Sumatra in the south.[1] They inhabit grasslands, tropical evergreen forests, semi-evergreen forests, moist deciduous forests, dry deciduous forests and dry thorn forests, in addition to cultivated and secondary forests and scrublands. Over this range of habitat types elephants occur from sea level to over 3,000 m (9,800 ft). In the eastern Himalaya in northeast India, they regularly move up above 3,000 m (9,800 ft) in summer at a few sites.[41]

In Bangladesh, some isolated populations survived in the south-east Chittagong Hills in the early 1990s.[42] In Malaysia's northern Johor and Terengganu National Park, two Asian elephants tracked using satellite tracking technology spent most of their time in secondary or "logged-over forest"; they travelled 75% of their time in an area less than 1.5 km (0.93 mi) away from a water source.[43] In China, the Asian elephant survives only in the prefectures of Xishuangbanna, Simao and Lincang of southern Yunnan. As of 2020, the estimated population was around 300 individuals.[44]

As of 2017, the estimated wild population in India account for nearly three-fourths of the extant population, at 27,312 individuals.[45] In 2019, the Asian elephant population in India increased to an estimated 27,000–29,000 individuals.[46][47] As of 2019, the global wild population was estimated at 48,323–51,680 individuals.[48]

Ecology and behaviour[edit | edit source]

Asian elephants are megaherbivores, consuming large amount of plant matter. Pictured are grazing elephants from Kerala, India
Asian elephant cows and calves live in closely knit groups. Pictured is group of elephants in Thailand

Asian elephants are crepuscular.[10] They are classified as megaherbivores and consume up to 150 kg (330 lb) of plant matter per day.[49] Around 50 to 75% of the day is devoted to eating.[50] They are generalist feeders, and are both grazers and browsers. They are known to feed on at least 112 different plant species, most commonly of the order Malvales, as well as the legume, palm, sedge and true grass families.[51] They browse more in the dry season with bark constituting a major part of their diet in the cool part of that season.[52] They drink at least once a day and are never far from a permanent source of fresh water.[10] They need 80–200 litres of water a day and use even more for bathing. At times, they scrape the soil for clay or minerals.[53][54]

Cows and calves move about together as groups, while bulls disperse from their mothers upon reaching adolescence. Bulls are solitary or form temporary "bachelor groups".[55] Cow-calf units generally tend to be small, typically consisting of three adults (most likely related females) and their offspring.[56] Larger groups of as many as 15 adult females have also been recorded.[57] Seasonal aggregations of 17 individuals including calves and young adults have been observed in Sri Lanka's Uda Walawe National Park. Until recently, Asian elephants, like African elephants, were thought to be under the leadership of older adult females, or matriarchs. It is now recognized that cows form extensive and very fluid social networks, with varying degrees of associations between individuals.[58] Social ties generally tend to be weaker than in African bush elephants.[57] Unlike African elephants, which rarely use their forefeet for anything other than digging or scraping soil, Asian elephants are more agile at using their feet in conjunction with the trunk for manipulating objects. They can sometimes be known for their violent behavior.[29]

Elephant reunion in East Nepal

Asian elephants are recorded to make three basic sounds: growls, squeaks and snorts. Growls in their basic form are used for short distance communication. During mild arousal, growls resonate in the trunk and become rumbles while for long-distance communication, they escalate into roars. Low-frequency growls are infrasonic and made in many contexts. Squeaks come in two forms: chirpings and trumpets. Chirping consists of multiple short squeaks and signals conflict and nervousness. Trumpets are lengthened squeaks with increased loudness and are produced during extreme arousal. Snorts signal changes in activity and increase in loudness during mild or strong arousal. During the latter case, when an elephant bounces the tip of the trunk, it creates booms which serve as threat displays.[59] Elephants can distinguish low-amplitude sounds.[60]

Rarely, tigers have been recorded attacking and killing calves, especially if the calves become separated from their mothers, stranded from their herd, or orphaned. Adults are largely invulnerable to natural predation. There is a singular anecdotal case of a mother Asian elephant allegedly being killed alongside her calf; however, this account is contestable.[61][62] In 2011 and 2014, two instances were recorded of tigers successfully killing adult elephants; one by a single tiger in Jim Corbett National Park on a 20-year-old young adult elephant cow, and another on a 28-year-old sick adult bull in Kaziranga National Park further east, which was taken down and eaten by several tigers hunting cooperatively.[63][64] Elephants appear to distinguish between the growls of larger predators like tigers and smaller predators like leopards; they react to leopards less fearfully and more aggressively.[65]

Reproduction[edit | edit source]

Reproduction in Asian elephants can be attributed to the production and perception of signaling compounds called pheromones. These signals are transmitted through various bodily fluids. They are commonly released in urine but in males they are also found in special secretions from the temporal glands.[66] Once integrated and perceived, these signals provide the receiver with information about the reproductive status of the sender. If both parties are ready to breed, reproductive ritualic behavior occurs and the process of sexual reproduction proceeds.[67]

Bulls will fight one another to get access to oestrus cows. Strong fights over access to females are extremely rare. Bulls reach sexual maturity around the age of 12–15. Between the ages of 10 and 20 years, bulls undergo an annual phenomenon known as "musth". This is a period where the testosterone level is up to 100 times greater than non-musth periods, and they become aggressive. Secretions containing pheromones occur during this period, from the paired temporal glands located on the head between the lateral edge of the eye and the base of the ear.[68] The aggressive behaviors observed during musth can be attributed to varying amounts of frontalin (1,5-dimethyl-6,8-dioxabicyclo[3.2.1]octane) throughout the maturation process of bulls. Frontalin is a pheromone that was first isolated in bark beetles but can also be produced in the bulls of both Asian and African Elephants. The compound can be excreted through urine as well as through the temporal glands of the bull, allowing signaling to occur. During musth, increased concentrations of frontalin in the bull's urine communicate the reproductive status of the bull to female elephants.[69]

Similar to other mammals, hormone secretion in female elephants is regulated by an estrous cycle. This cycle is regulated by surges in Luteinizing hormone that are observed three weeks from each other. This type of estrous cycle has also been observed in African Elephants but is not known to affect other mammals. The first surge in Luteinizing hormone is not followed by the release of an egg from the ovaries.[70] However, some female elephants still exhibit the expected mating protocols during this surge. Female elephants give ovulatory cues by utilizing sex pheromones. A principal component thereof, (Z)-7-dodecen-1-yl acetate, has also been found to be a sex pheromone in numerous species of insects.[71][72] In both insects and elephants, this chemical compound is used as an attractant to assist the mating process. In elephants, the chemical is secreted through urination and this aids in the attraction of bulls to mate. Once detected, the chemical stimulates the vomeronasal organ of the bull, thus providing information on the maturity of the female.[73]

Reproductive signaling exchange between male and female elephants are transmitted through olfactory cues in bodily fluids.[67] In males, the increase in frontalin during musth heightens their sensitivity to the (Z)-7-dodecen-1-yl acetate produced by female elephants.[69] Once perceived by receptors in the trunk, a sequence of ritualistic behaviors follow. The responses in males vary based on both the stage of development and the temperament of the elephant.[67] This process of receiving and processing signals through the trunk is referred to as flehmen. The difference in body movements give cues to gauge if the male is interested in breeding with the female that produced the secretion.[74] A bull that is ready to breed will move closer to the urine and in some cases an erection response is elicited. A bull that is not ready to breed will be timid and try to dissociate themselves from the signal.[67] In addition to reproductive communication, chemosensory signaling is used to facilitate same-sex interactions. When less developed males detect pheromones from a male in musth, they often retreat to avoid coming in contact with aggressive behaviors. Female elephants have also been seen to communicate with each other through pheromone in urine.[67] The purpose of this type of intrasex communication is still being investigated. However, there are clear differences in signaling strength and receiver response throughout different stages of the estrous cycle.[74]

The gestation period is 18–22 months, and the cow gives birth to one calf, only occasionally twins. The calf is fully developed by the 19th month, but stays in the womb to grow so that it can reach its mother to feed. At birth, the calf weighs about 100 kg (220 lb), and is suckled for up to three years. Once a female gives birth, she usually does not breed again until the first calf is weaned, resulting in a four to five-year birth interval.[75][76] During this period, mother to calf communication primarily takes place through temporal means. However, male calves have been known to develop sex pheromone-producing organs at a young age. Early maturity of the vomeronasal organ allows immature elephants to produce and receive pheromones.[77] It is unlikely that the integration of these pheromones will result in a flehmen response in a calf.[74] Females stay on with the herd, but mature males are chased away.[78]

Female Asian elephants sexually mature around the age of 10~15 and keep growing until 30, while males fully mature at more than the age of 25, and constantly grow throughout their life.[79][80] Average elephant life expectancy is approximately 60 years.[10] Some individuals are known to have lived into their late 80s.[81] Generation length of the Asian elephant is 22 years.[82]

Intelligence[edit | edit source]

Elephant stacking blocks to allow it to reach food

Asian elephants have a very large and highly developed neocortex, a trait also shared by humans, apes and certain dolphin species. They have a greater volume of cerebral cortex available for cognitive processing than all other existing land animals. Results of studies indicate that Asian elephants have cognitive abilities for tool use and tool-making similar to great apes.[83] They exhibit a wide variety of behaviours, including those associated with grief, learning, allomothering, mimicry, play, altruism, use of tools, compassion, cooperation, self-awareness, memory, and language.[84] Elephants reportedly head to safer ground during natural disasters like tsunamis and earthquakes, but data from two satellite-collared Sri Lankan elephants indicate this may be untrue.[85] Several students of elephant cognition and neuroanatomy are convinced that Asian elephants are highly intelligent and self-aware.[86][87][88] Others contest this view.[89][90]

Threats[edit | edit source]

The pre-eminent threats to the Asian elephant today are the loss, degradation and fragmentation of its habitat, which leads to increasing conflicts between humans and elephants. Asian elephants are poached for ivory and a variety of other products including meat and leather.[1] The demand for elephant skin has risen due to it being an increasingly-common ingredient in traditional Chinese medicine.[91][92]

Human–elephant conflict[edit | edit source]

Forests cleared for jhum—a type of shifting cultivation practiced in Arunachal Pradesh, India
Elephants on the road in Khao Yai National Park, Thailand

In some parts of Asia, people and elephants have co-existed for thousands of years.[93] In other areas, people and elephants come into conflict, resulting in violence, and ultimately, the displacement of elephants.[94] The main causes of human-elephant conflict includes the growing human population, large-scale development projects and poor top-down governance. Proximate causes includes habitat loss due to deforestation, disruption of elephant migratory routes, expansion of agriculture and illegal encroachment into protected areas.[95]

Destruction of forests through logging, encroachment, slash-and-burn, shifting cultivation, and monoculture tree plantations are major threats to the survival of elephants. Human–elephant conflicts occur when elephants raid crops of shifting cultivators in fields, which are scattered over a large area interspersed with forests. Depredation in human settlements is another major area of human–elephant conflict occurring in small forest pockets, encroachments into elephant habitat, and on elephant migration routes.[96] However, studies in Sri Lanka indicate that traditional slash-and-burn agriculture may create optimal habitats for elephants by creating a mosaic of successional-stage vegetation. Populations inhabiting small habitat fragments are much more liable to come into conflict with humans.[97]

Development such as border fencing along the India–Bangladesh border has become a major impediment to the free movement of elephants.[98] In Assam, more than 1,150 humans and 370 elephants died as a result of human-elephant conflict between 1980 and 2003.[96] In a 2010 study, it was estimated that in India alone, over 400 people were killed by elephants each year, and 0.8 to 1 million hectares were damaged, affecting at least 500,000 families across the country.[99][100][101] Moreover, elephants are known to destroy crops worth up to US$2–3 million annually.[102] This has major impacts on the welfare and livelihoods of local communities, as well as the future conservation of this species.[95] In countries like Bangladesh and Sri Lanka, the Asian elephant is one of the most feared wild animals, even though they are less deadly than other local animals such as venomous snakes (which were estimated to claim more than 30 times more lives in Sri Lanka than elephants).[103][104]

As a whole, Asian elephants display highly sophisticated and sometimes unpredictable behaviour. Most untamed elephants try to avoid humans, but if they are caught off guard by any perceived physical threat, including humans, they will likely charge. This is especially true of males in musth and of females with young. Gunfire and other similar methods of deterring, which are known to be effective against many kinds of wild animals including tigers, may or may not work with elephants, and can even worsen the situation. Elephants that have been abused by humans in the past often become "rogue elephants", which regularly attack people with no provocation.[105][106][107]

Poaching[edit | edit source]

For ivory[edit | edit source]

The demand for ivory during the 1970s and 1980s, particularly in East Asia, led to rampant poaching and the serious decline of elephants in both Africa and Asia. In Thailand, the illegal trade in live elephants and ivory still flourishes. Although the amount of ivory being openly sold has decreased substantially since 2001, Thailand still has one of the largest and most active black markets for ivory seen anywhere in the world. Tusks from Thai-poached elephants also enter the market; between 1992 and 1997 at least 24 male elephants were killed for their tusks.[108]

Up to the early 1990s, Vietnamese ivory craftsmen used exclusively Asian elephant ivory from Vietnam and neighbouring Lao and Cambodia. Before 1990, there were few tourists and the low demand for worked ivory could be supplied by domestic elephants. Economic liberalisation and an increase in tourism raised both local and visitors' demands for worked ivory, which resulted in heavy poaching.[109]

For skin[edit | edit source]

The skin of the Asian elephant is used as an ingredient in Chinese medicine as well as in the manufacture of ornamental beads. The practice has been aided by China's State Forestry Administration (SFA), which has issued licences for the manufacture and sale of pharmaceutical products containing elephant skin, thereby making trading legal. In 2010, four skinned elephants were found in a forest in Myanmar; 26 elephants were killed by poachers in 2013 and 61 in 2016. According to the NGO Elephant Family, Myanmar is the main source of elephant skin, where a poaching crisis has developed rapidly since 2010.[110]

Disease[edit | edit source]

The elephant endotheliotropic herpesvirus (EEHV) is a member of the Proboscivirus genus, a novel clade most closely related to the mammalian betaherpesviruses. As of 2011, it is responsible for as many as 70 deaths of both zoo and wild Asian elephants worldwide, especially in young calves.[111][112] In particular, several incidents of calves dying from elephant endotheliotropic herpesvirus have been recorded in Myanmar.[113] The elephant schistosome is a parasitic trematode that uses the Asian elephant as a definitive host. Two other hosts may be the Indian elephant and the greater one-horned rhinoceros.[114]

Conservation[edit | edit source]

Asian elephants are protected across various geographies. Pictured are elephants in Mudumalai National Park in India (left) and Tad Lo river, Salavan Province, Laos (right)

The Asian elephant is listed on CITES Appendix I.[2] It is a quintessential flagship species, deployed to catalyze a range of conservation goals, including habitat conservation at landscape scales, generating public awareness on conservation issues, and mobilisation as a popular cultural icon both in India and the West.[115][116][95] A key aspect of conservation is connectivity of the preferred movement routes of Asian elephants through areas with high vegetation cover and low human population density.[117]

The World Elephant Day is celebrated annually on 12 August since 2012. Events are organized to divulge information and to engage people about the problems that the Asian elephant is facing.[118] August has been established as the Asian Elephant Awareness Month by zoos and conservation partners in the United States.[119]

Karnataka state in India hosts the most Asian elephants of any known area, comprising around 20% of the total population in the country. The distribution of elephants in the state according to one estimate is roughly 38,310 km2 (14,790 sq mi).[120] In a 2013 study, an estimated 10, 000 elephants inhabited the Western Ghats, and were primarily threatened by poaching and habitat fragmentation. An increase in conflict with humans was also cited as a likely issue. Conservation plans aimed to establish wildlife corridors, stop poaching of bulls, and protect or manage land area.[121] Project Elephant was initiated in 1992 as a Centrally Sponsored Scheme (CSS) by the Ministry of Environment, Forest and Climate Change of the Government of India. The project was initiated to protect the Indian elephant and its habitats and to establish dedicated elephant reserves for sustaining elephant populations.[122]

The distribution of elephants in Sri Lanka is only two-fifths of what it was in the late 19th and early 20th centuries. Due to this decrease, interactions with humans occur much more frequently. During a 2003 survey, the local people expressed some form of disapproval towards the conservation of Asian elephants as farmers viewed them as pests, however, most of the participants were supportive of the idea.[123]

In China, Asian elephants are under first-level protection. Yunnan province has 11 national and regional nature reserves. In total, the covered protected area in China is about 510,000 ha (1,300,000 acres). In 2020, the population of Asian elephants in Yunnan was estimated at around 300 individuals. As conflicts between humans and wild elephants have emerged around protected areas in the last years, the prefecture of Xishuangbanna built food bases and planted bananas and bamboo to create a better habitat.[44]

In Thailand, Salakpra Wildlife Sanctuary and Tham Than Lot National Park are protected areas hosting around 250–300 elephants, according to figures from 2013.[124] In recent years the National Park has faced issues due to encroachment and over-exploitation.[125] In India, the National Board of Wildlife recommended to allow coal mining in Dehing Patkai National Park in April 2020. The decision raised concerns between students and environmental activists who launched an online campaign to stop the project.[126]

In captivity[edit | edit source]

Rhythmic swaying behaviour is not reported in free ranging wild elephants and may be symptomatic of psychological disorders.

About half of the global zoo elephant population is kept in European zoos, where they have less than half (18.9 years) the median life span of conspecifics (41.6 years) in protected populations in range countries. This discrepancy is clearest in Asian elephants: infant mortality is more than two to three times that seen in Burmese timber camps, and adult survivorship in zoos has not improved significantly in recent years. One risk factor for Asian zoo elephants is being moved between institutions, with early removal from the mother tending to have additional adverse effects. Another risk factor is being born into a zoo rather than being imported from the wild, with poor adult survivorship in zoo-born Asians apparently being conferred prenatally or in early infancy. Likely causes for compromised survivorship is stress and/or obesity.[127] Foot problems are commonly observed in captive elephants. These are related to lack of exercise, long hours standing on hard substrates, and contamination resulting from standing in their dung. Many of these problems are treatable. However, mistreatment may lead to serious disability or death.[128]

Demographic analysis of captive Asian elephants in North America indicates that the population is not self-sustaining. First year mortality is nearly 30 per cent, and fecundity is extremely low throughout the prime reproductive years.[129] Data from North American and European regional studbooks from 1962 to 2006 were analysed for deviations in the birth and juvenile death sex ratios. Of 349 captive calves born, 142 died prematurely. They died within one month of birth, major causes being stillbirth and infanticide by either the calf's mother or by one of the exhibition mates. The sex ratio of stillbirths in Europe was found to have a tendency for excess of males.[130]

Handling methods[edit | edit source]

Elephants are used for safari tourism in some Asian countries

Young elephants are captured from the wild and illegally imported to Thailand from Myanmar for use in the tourism industry; calves are used mainly in amusement parks and are trained to perform various stunts for tourists.[108] The calves are often subjected to a 'breaking in' process, which may involve being tied up, confined, starved, beaten and tortured; as a result, two-thirds may perish.[131] Handlers use a technique known as the training crush, in which "handlers use sleep-deprivation, hunger, and thirst to 'break' the elephants' spirit and make them submissive to their owners"; moreover, handlers drive nails into the elephants' ears and feet.[132]

In culture[edit | edit source]

Ganesha on his vahana mūṣaka the rat, c. 1820

The Asian elephant is the national animal of Thailand and Laos.[133][134] It has also been declared as the national heritage animal of India.[135] Bones of Asian elephants excavated at Mohenjo-daro in the Indus Valley indicate that they were tamed in the Indus Valley Civilisation and used for work. Decorated elephants are also depicted on seals and were modelled in clay.[136] The Asian elephant became a siege engine, a mount in war, a status symbol, a beast of burden, and an elevated platform for hunting during historical times in South Asia.[137]

Asian elephants have been captured from the wild and tamed for use by humans. Elephants can remember tone, melody, and words, allowing them to recognise more than 20 verbal commands.[138] Their ability to work under instruction makes them particularly useful for carrying heavy objects. They have been used particularly for timber-carrying in jungle areas. Other than their work use, they have been used in war, in ceremonies, and for carriage.[139] It is reported that war elephants are still used by the Kachin Independence Army (KIA) in Kachin State in northern Myanmar against Myanmar's military. The KIA use about four dozen elephants to carry supplies.[140]

The Asian elephant plays an important part in the culture of the subcontinent and beyond, being featured prominently in the Panchatantra fables and the Buddhist Jataka tales. They play a major role in Hinduism: the god Ganesha's head is that of an elephant, and the "blessings" of a temple elephant are highly valued. Elephants are frequently used in processions where the animals are adorned with festive outfits.[141]

The Asian elephant is depicted in several Indian manuscripts and treatises with notable amongst these including Matanga Lila (elephant sport) of Nilakantha.[141] The manuscript Hastividyarnava is from Assam in northeast India.[142] In the Burmese, Thai and Sinhalese animal and planetary zodiac, the Asian elephant, both tusked and tuskless, are the fourth and fifth animal zodiacs of the Burmese, the fourth animal zodiac of the Thai, and the second animal zodiac of the Sinhalese people of Sri Lanka.[143][144] Similarly, the elephant is the twelfth animal zodiac in the Dai animal zodiac of the Dai people in southern China.[145]

See also[edit | edit source]

References[edit | edit source]

  1. 1.0 1.1 1.2 1.3 1.4 Williams, C.; Tiwari, S.K.; Goswami, V.R.; de Silva, S.; Kumar, A.; Baskaran, N.; Yoganand, K. & Menon, V. (2020). "Elephas maximus". IUCN Red List of Threatened Species. 2020 e.T7140A45818198. doi:10.2305/IUCN.UK.2020-3.RLTS.T7140A45818198.en. Retrieved 15 January 2022.
  2. 2.0 2.1 "Appendices". Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES). Archived from the original on 5 December 2017. Retrieved 6 June 2022.
  3. 3.0 3.1 Template:MSW3 Proboscidea
  4. Linnaei, C. (1758). "Bruta". Caroli Linnæi Systema naturæ per regna tria naturæ, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis. Vol. Tomus I. Holmiae: Impensis Direct. Laurentti Salvii. p. 33.
  5. Witteveen, Joeri; Müller-Wille, Staffan (December 2020). "Of elephants and errors: naming and identity in Linnaean taxonomy". History and Philosophy of the Life Sciences. 42 (4). doi:10.1007/s40656-020-00340-z. ISSN 0391-9714.
  6. 6.0 6.1 Cappellini, Enrico; Gentry, Anthea; Palkopoulou, Eleftheria; Ishida, Yasuko; Cram, David; Roos, Anna-Marie; Watson, Mick; Johansson, Ulf S.; Fernholm, Bo; Agnelli, Paolo; Barbagli, Fausto; Littlewood, D. Tim J.; Kelstrup, Christian D.; Olsen, Jesper V.; Lister, Adrian M. (1 January 2014). "Resolution of the type material of the Asian elephant, Elephas maximus Linnaeus, 1758 (Proboscidea, Elephantidae)". Zoological Journal of the Linnean Society. 170 (1): 222–232. doi:10.1111/zoj12084. ISSN 0024-4082.
  7. Cuvier, G. (1798). "Elephas indicus". Tableau elementaire de l'histoire naturelle des animaux. Paris: Baudouin. pp. 148–149.
  8. Temminck, C. J. (1847). "Elephas sumatranus". Coup-d'oeil général sur les possessions néerlandaises dans l'Inde archipélagique. Vol. Tome second. Leide: A. Arnz and Comp. p. 91.
  9. Chasen, F.N. (1940). "A handlist of Malaysian mammals, a systematic list of the mammals of the Malay Peninsula, Sumatra, Borneo and Java, including the adjacent small islands" (PDF). Bulletin of the Raffles Museum. 15: 1–209. Archived from the original (PDF) on 12 February 2020.
  10. 10.00 10.01 10.02 10.03 10.04 10.05 10.06 10.07 10.08 10.09 10.10 Shoshani, J.; Eisenberg, J. F. (1982). "Elephas maximus" (PDF). Mammalian Species (182): 1–8. doi:10.2307/3504045. JSTOR 3504045. Archived from the original (PDF) on 30 April 2013.
  11. Fleischer, R.C.; Perry, E.A.; Muralidharan, K.; Stevens, E.E. & Wemmer, C.M. (2001). "Phylogeography of the Asian elephant (Elephas maximus) based on mitochondrial DNA". Evolution. 55 (9): 1882–1892. doi:10.1111/j.0014-3820.2001.tb00837.x. JSTOR 2680432. PMID 11681743.
  12. Shoshani, J. (2006). "Taxonomy, Classification, and Evolution of Elephants". In Fowler, M. E.; Mikota, S. K. (eds.). Biology, medicine, and surgery of elephants. Wiley-Blackwell. pp. 3–14. ISBN 0-8138-0676-3. Archived from the original on 20 October 2022. Retrieved 4 June 2020.
  13. Farrows. "Bornean Elephant: Species in World Land Trust reserves". World Land Trust. Archived from the original on 14 May 2021. Retrieved 26 January 2021.
  14. Deraniyagala 1955, p. 123–124.
  15. 15.0 15.1 Cranbrook, E.; Payne, J. & Leh, C.M.U. (2007). "Origin of the elephants Elephas maximus L. of Borneo" (PDF). Sarawak Museum Journal. 63 (84): 95–125. doi:10.61507/smj22-2007-Q11Q-04. Archived (PDF) from the original on 27 September 2012. Retrieved 13 March 2011.
  16. Nurzhafarina, O.; Maryati, M.; Ahmad, A.H.; Nathan, S.; Pierson, H.T.; Goosens, B. (2008). "A preliminary study on the morphometrics of the Bornean Elephant" (PDF). Journal of Tropical Biology and Conservation. 4 (1): 109–113. Archived from the original (PDF) on 7 March 2012.
  17. Fernando, P.; Vidya, T. N. C.; Payne, J.; Stuewe, M.; Davison, G.; Alfred, R. J.; Andau, P.; Bosi, E. & Kilbourn, A. (2003). "DNA Analysis Indicates That Asian Elephants Are Native to Borneo and Are Therefore a High Priority for Conservation". PLOS Biology. 1 (1) e6. doi:10.1371/journal.pbio.0000006. PMC 176546. PMID 12929206.
  18. Fernando, P.; Vidya T.N.C.; Payne J.; Stuewe M.; Davison G.; Alfred, R.J.; Andau, P.; Bosi, E.; Kilbourn, A.; Melnick, D.J. (2003). "DNA Analysis indicates that Asian Elephants are native to Borneo and are therefore a High Priority for conservation". PLOS Biology. 1 (1) e6. doi:10.1371/journal.pbio.0000006. PMC 176546. PMID 12929206.
  19. Deraniyagala 1955, p. 116.
  20. Girdland Flink, E.L.; Albayrak, E. & Lister, A. (2018). "Genetic insight into an extinct population of Asian elephants (Elephas maximus) in the Near East". Open Quaternary. 4 (1): 1–9. doi:10.5334/oq.36. hdl:2164/13525.
  21. Deraniyagala 1955, p. 125.
  22. Deraniyagala 1955, p. 124.
  23. Rohland, Nadin; Reich, David; Mallick, Swapan; Meyer, Matthias; Green, Richard E.; Georgiadis, Nicholas J.; Roca, Alfred L.; Hofreiter, Michael (21 December 2010). "Genomic DNA Sequences from Mastodon and Woolly Mammoth Reveal Deep Speciation of Forest and Savanna Elephants". PLOS Biology. 8 (12) e1000564. doi:10.1371/journal.pbio.1000564. ISSN 1545-7885. PMC 3006346. PMID 21203580.
  24. Haynes, G. (1993). Mammoths, Mastodonts, and Elephants: Biology, Behavior and the Fossil Record. Cambridge University Press. p. 8. ISBN 978-0-521-45691-3. Archived from the original on 17 March 2024. Retrieved 19 March 2018.
  25. Sanders, William J.; Haile-Selassie, Yohannes (June 2012). "A New Assemblage of Mid-Pliocene Proboscideans from the Woranso-Mille Area, Afar Region, Ethiopia: Taxonomic, Evolutionary, and Paleoecological Considerations". Journal of Mammalian Evolution. 19 (2): 105–128. doi:10.1007/s10914-011-9181-y. ISSN 1064-7554. S2CID 254703858. Archived from the original on 17 March 2024. Retrieved 12 August 2023.
  26. Iannucci, Alessio; Sardella, Raffaele (28 February 2023). "What Does the "Elephant-Equus" Event Mean Today? Reflections on Mammal Dispersal Events around the Pliocene-Pleistocene Boundary and the Flexible Ambiguity of Biochronology". Quaternary. 6 (1): 16. Bibcode:2023Quat....6...16I. doi:10.3390/quat6010016. hdl:11573/1680082. ISSN 2571-550X.
  27. Lister, Adrian M.; Dirks, Wendy; Assaf, Amnon; Chazan, Michael; Goldberg, Paul; Applbaum, Yaakov H.; Greenbaum, Nathalie; Horwitz, Liora Kolska (September 2013). "New fossil remains of Elephas from the southern Levant: Implications for the evolutionary history of the Asian elephant". Palaeogeography, Palaeoclimatology, Palaeoecology. 386: 119–130. Bibcode:2013PPP...386..119L. doi:10.1016/j.palaeo.2013.05.013. Archived from the original on 2 January 2023. Retrieved 12 August 2023.
  28. Çakırlar, Canan; Ikram, Salima (3 May 2016). "'When elephants battle, the grass suffers.' Power, ivory and the Syrian elephant". Levant. 48 (2): 167–183. doi:10.1080/00758914.2016.1198068. ISSN 0075-8914.
  29. 29.0 29.1 Clutton-Brock, Juliet (1987). A Natural History of Domesticated Mammals. Cambridge University Press. p. 141. ISBN 978-0-292-71532-5.
  30. Shoshani, J., ed. (2000). Elephants: Majestic Creatures of the Wild. Checkmark Books. pp. 38–41, 74–77. ISBN 978-0-87596-143-9. OCLC 475147472.
  31. Chelliah, Karpagam; Sukumar, Raman (1 December 2013). "The role of tusks, musth and body size in male–male competition among Asian elephants, Elephas maximus". Animal Behaviour. 86 (6): 1207–1214. doi:10.1016/j.anbehav.2013.09.022. ISSN 0003-3472. Archived from the original on 2 December 2018. Retrieved 17 March 2024.
  32. Nancy E. Todd (January 2010). "Qualitative Comparison of the Cranio-Dental Osteology of the Extant Elephants, Elephas Maximus (Asian Elephant) and Loxodonta africana (African Elephant)". Anatomical Record. 293 (1): 62–73. doi:10.1002/ar.21011. PMID 19937635. Archived from the original on 21 May 2024. Retrieved 21 May 2024.
  33. "Makhna". Elephant database. Archived from the original on 21 May 2024. Retrieved 1 December 2023.
  34. 34.0 34.1 Lydekker, R. (1894). The Royal Natural History. Vol. 2. London: Frederick Warne and Co. pp. 522–530.
  35. 35.0 35.1 35.2 Larramendi, A. (2016). "Shoulder height, body mass and shape of proboscideans". Acta Palaeontologica Polonica. 61 (3): 537–574. doi:10.4202/app.00136.2014.
  36. Sukumar, R.; Joshi, N.V.; Krishnamurthy, V. (1988). "Growth in the Asian elephant". Proceedings: Animal Sciences. 97 (6): 561–571. doi:10.1007/BF03179558. S2CID 84871322.
  37. Kurt, F.; Kumarasinghe, J.C. (1998). "Remarks on body growth and phenotypes in Asian elephant Elephas maximus". Acta Theriologica. 5 (Supplement): 135–153. doi:10.4098/AT.arch.98-39.
  38. Pillai, N.G. (1941). "On the height and age of an elephant". Journal of the Bombay Natural History Society. 42: 927–928.
  39. Wood, G. (1983). The Guinness Book of Animal Facts and Feats. Enfield, Middlesex: Guinness Superlatives. p. 17. ISBN 978-0-85112-235-9.
  40. Furaha tenVelde, P. (1997). "The wild elephants of the Royal Bardia National Park, Nepal" (PDF). Gajah: Journal of the SSC Asian Elephant Specialist Group (17): 41–44.
  41. Choudhury, A. U. (1999). "Status and conservation of the Asian elephant Elephas maximus in north-eastern India". Mammal Review. 29 (3): 141–173. Bibcode:1999MamRv..29..141C. doi:10.1046/j.1365-2907.1999.00045.x.
  42. Sukumar, R. (1993). The Asian Elephant: Ecology and Management (Second ed.). Cambridge: Cambridge University Press. p. 18. ISBN 978-0-521-43758-5. Archived from the original on 17 March 2024. Retrieved 15 December 2015.
  43. Aini, S.; Sood, A. M.; Saaban, S. "Analysing elephant habitat parameters using GIS, remote sensing and analytic hierarchy process in Peninsular Malaysia". Pertanika Journal of Science & Technology. 23 (1): 37–50. Archived from the original on 17 May 2023. Retrieved 17 May 2023.
  44. 44.0 44.1 Shuang, F. (2020). "Solving a dilemma caused by elephants". ECNS. Archived from the original on 13 January 2021. Retrieved 6 September 2020.
  45. "India has 27,312 elephants, census shows". The Hindu. 16 August 2017. Archived from the original on 3 December 2023. Retrieved 1 December 2023.
  46. Srinivasaiah, Nishant M.; Vaidyanathan, Srinivas; Sukumar, Raman; Sinha, Anindya (2019). "Elephants on the Move: Implications for Human–Elephant Interaction". India International Centre Quarterly. 46 (3/4): 100–113. ISSN 0376-9771. JSTOR 26946286.
  47. Baskaran, N.; Varma, S.; Sar, C.K.; Sukumar, R. (2011). "Current status of elephants in India". Gajah. 35: 47–54. Archived from the original on 21 May 2024. Retrieved 29 March 2024.
  48. Menon, V.; Tiwari, S. (2019). "Population status of Asian elephants Elephas maximus and key threats". International Zoo Yearbook. 53 (1): 17–30. doi:10.1111/izy.12247. S2CID 209571148.
  49. Samansiri, K. A. P.; Weerakoon, D. K. (2007). "Feeding Behaviour of Asian Elephants in the Northwestern Region of Sri Lanka" (PDF). Gajah. 2: 27–34. Archived (PDF) from the original on 18 November 2016. Retrieved 18 October 2011.
  50. Sukumar, R. (July 2006). "A brief review of the status, distribution and biology of wild Asian elephants Elephas maximus". International Zoo Yearbook. 40 (1): 1–8. doi:10.1111/j.1748-1090.2006.00001.x. ISSN 0074-9664. Archived from the original on 18 March 2024. Retrieved 18 March 2024.
  51. Sukumar, R. (1990). "Ecology of the Asian Elephant in southern India. II. Feeding habits and crop raiding patterns" (PDF). Journal of Tropical Ecology. 6: 33–53. doi:10.1017/S0266467400004004. S2CID 85129439. Archived from the original (PDF) on 12 October 2007.
  52. Pradhan, N. M. B.; Wegge, P.; Moe, S. R.; Shrestha, A. K. (2008). "Feeding ecology of two endangered sympatric megaherbivores: Asian elephant Elephas maximus and greater one-horned rhinoceros Rhinoceros unicornis in lowland Nepal" (PDF). Wildlife Biology. 14: 147–154. doi:10.2981/0909-6396(2008)14[147:FEOTES]2.0.CO;2. S2CID 85964847. Archived (PDF) from the original on 13 March 2023. Retrieved 3 January 2023.
  53. Sach, Fiona; Dierenfeld, Ellen S.; Langley-Evans, Simon C.; Hamilton, Elliott; Murray Lark, R.; Yon, Lisa; Watts, Michael J. (15 May 2020). "Potential bio-indicators for assessment of mineral status in elephants". Scientific Reports. 10 (1): 8032. Bibcode:2020NatSR..10.8032S. doi:10.1038/s41598-020-64780-0. ISSN 2045-2322. PMC 7229182. PMID 32415129.
  54. Singh, A. P.; Sharma, Ramesh C. (24 September 2001). "Conflicts between linear developments and Asian elephants in sub-Himalayan zone of Uttranchal". Road Ecology Center. Archived from the original on 18 March 2024. Retrieved 18 March 2024.
  55. McKay, G. M. (1973). "Behavior and ecology of the Asiatic elephant in southeastern Ceylon". Smithsonian Contributions to Zoology. 125 (125): 1–113. doi:10.5479/si.00810282.125. S2CID 128585445.
  56. Fernando, P.; Lande, R. (2000). "Molecular genetic and behavioral analysis of social organization in the Asian elephant (Elephas maximus)". Behav Ecol Sociobiol. 48 (1): 84–91. Bibcode:2000BEcoS..48...84F. doi:10.1007/s002650000218. S2CID 33707844.
  57. 57.0 57.1 de Silva, S.; Wittemyer, G. (2012). "A Comparison of Social Organization in Asian Elephants and African Savannah Elephants". International Journal of Primatology. 33 (5): 1125–1141. doi:10.1007/s10764-011-9564-1. S2CID 17209753.
  58. de Silva, S.; Ranjeewa, A. D. G.; Kryazhimskiy, S. (2011). "The dynamics of social networks among female Asian elephants". BMC Ecology. 11 (1): 17. Bibcode:2011BMCE...11...17D. doi:10.1186/1472-6785-11-17. PMC 3199741. PMID 21794147.
  59. Sukumar, R. (2003). The Living Elephants: Evolutionary Ecology, Behavior, and Conservation. Oxford: Oxford University Press. p. 142. ISBN 978-0-19-510778-4.
  60. Heffner, R.; Heffner, H. (1980). "Hearing in the elephant (Elephas maximus)". Science. 208 (4443): 518–520. Bibcode:1980Sci...208..518H. doi:10.1126/science.7367876. PMID 7367876. Archived from the original on 17 March 2024. Retrieved 27 September 2013.
  61. Karanth, K. U. & Nichols, J. D. (1998). "Estimation of tiger densities in India using photographic captures and recaptures" (PDF). Ecology. 79 (8): 2852–2862. doi:10.1890/0012-9658(1998)079[2852:EOTDII]2.0.CO;2. JSTOR 176521. Archived from the original (PDF) on 9 August 2017. Retrieved 7 December 2012.
  62. "Tiger kills mother, baby elephant". Elephant News. 2006. Archived from the original on 14 July 2014.
  63. "Tiger kills elephant in Corbett Reserve". The Hindu. 29 January 2011. Archived from the original on 8 February 2024. Retrieved 8 February 2024.
  64. "Kaziranga elephant killed in tiger attack". The Times of India. 22 October 2014. Archived from the original on 8 February 2024. Retrieved 8 February 2024.
  65. Thuppil, V.; Coss, R. G. (2013). "Wild Asian elephants distinguish aggressive tiger and leopard growls according to perceived danger". Biology Letters. 9 (5) 20130518. doi:10.1098/rsbl.2013.0518. PMC 3971691. PMID 24026347. Archived from the original on 14 July 2014.
  66. Rasmussen, L. E. L. (1 June 1999). "Evolution of chemical signals in the Asian elephant,Elephas maximus: behavioural and ecological influences". Journal of Biosciences. 24 (2): 241–251. doi:10.1007/BF02941206. ISSN 0973-7138. S2CID 37477741.
  67. 67.0 67.1 67.2 67.3 67.4 Schulte, Bruce A.; Bagley, Kathryn; Correll, Maureen; Gray, Amy; Heineman, Sarah M.; Loizi, Helen; Malament, Michelle; Scott, Nancy L.; Slade, Barbara E.; Stanley, Lauren; Goodwin, Thomas E.; Rasmussen, L. E. L. (2005). Mason, Robert T.; LeMaster, Michael P.; Müller-Schwarze, Dietland (eds.). "Assessing chemical communication in elephants". Chemical Signals in Vertebrates 10. Boston, MA: Springer US: 140–151. doi:10.1007/0-387-25160-X_18. ISBN 978-0-387-25160-8. Archived from the original on 22 November 2022. Retrieved 27 November 2022.
  68. Jainudeen, M. R.; McKay, G. M.; Eisenberg, J. F. (1972). "Observation on musth in the domesticated Asiatic elephant (Elephas maximus)". Mammalia. 36 (2): 247–261. doi:10.1515/mamm.1972.36.2.247. S2CID 84275661.
  69. 69.0 69.1 Rasmussen, L.E.L (1 June 2003). "Frontalin: a Chemical Message of Musth in Asian Elephants (elephas maximus)". Chemical Senses. 28 (5): 433–446. doi:10.1093/chemse/28.5.433. PMID 12826539. Archived from the original on 3 November 2022. Retrieved 27 November 2022.
  70. Brown, J.L.; Schmitt, D.L.; Bellem, A.; Graham, L.H.; Lehnhardt, J. (November 1999). "Hormone Secretion in the Asian Elephant (Elephas maximus): Characterizationof Ovulatory and Anovulatory Luteinizing Hormone Surges". Biology of Reproduction. 61 (5): 1294–1299. doi:10.1095/biolreprod61.5.1294. ISSN 0006-3363. PMID 10529277.
  71. Rasmussen, L. E. L.; Lee, T. D.; Zhang, A. J.; Roelofs, W. L.; Daves, G. D. (1997). "Purification, identification, concentration and bioactivity of (Z)-7-dodecen-1-yl acetate: sex pheromone of the female Asian elephant, Elephas maximus". Chemical Senses. 22 (4): 417–437. doi:10.1093/chemse/22.4.417. PMID 9279465.
  72. Rasmussen, L. E. L.; Lee, T. D.; Roelofs, W. L.; Zhang, A. J.; Daves, G. D. (1996). "Insect pheromone in elephants". Nature. 379 (6567): 684. Bibcode:1996Natur.379..684R. doi:10.1038/379684a0. PMID 8602213. S2CID 4330432.
  73. Rasmussen, L.E.L (22 February 1996). "Insect Pheromones in Elephants" (PDF). Nature. 379 (6567): 684. Bibcode:1996Natur.379..684R. doi:10.1038/379684a0. PMID 8602213. S2CID 4330432. Archived (PDF) from the original on 3 November 2022. Retrieved 27 November 2022.
  74. 74.0 74.1 74.2 Schulte, Bruce A.; LaDue, Chase A. (30 September 2021). "The Chemical Ecology of Elephants: 21st Century Additions to Our Understanding and Future Outlooks". Animals. 11 (10): 2860. doi:10.3390/ani11102860. ISSN 2076-2615. PMC 8532676. PMID 34679881.
  75. Crawley, J. A. H.; Mumby, H. S.; Chapman, S. N.; Lahdenperä, M.; Mar, K. U.; Htut, W.; Thura Soe, A.; Aung, H. H.; Lummaa, V. (5 August 2017). "Is bigger better? The relationship between size and reproduction in female Asian elephants". Journal of Evolutionary Biology. 30 (10): 1836–1845. doi:10.1111/jeb.13143. ISSN 1010-061X. PMID 28703384.
  76. Owen-Smith, R. Norman (1988). Megaherbivores: The Influence of Very Large Body Size on Ecology. Cambridge University Press. pp. 145–150. ISBN 978-0-521-42637-4. Archived from the original on 21 May 2024. Retrieved 21 May 2024.
  77. Johnson, Edward W.; Rasmussen, Lel (1 July 2002). "Morphological characteristics of the vomeronasal organ of the newborn Asian elephant (Elephas maximus)". The Anatomical Record. 267 (3): 252–259. doi:10.1002/ar.10112. ISSN 0003-276X. PMID 12115276. S2CID 30345793.
  78. "Elephant Social Organisation". ccrsl. Archived from the original on 4 March 2016. Retrieved 29 August 2015.
  79. Fernando, P.; Vijayakrishnan, S.; Ranjeewa, A. D.; Pastorini, J. (2022). "Size-age class scale for Asian elephants". Gajah. 55: 30–39.
  80. Mumby, H. S.; Chapman, S. N.; Crawley, J. A.; Mar, K. U.; Htut, W.; Thura Soe, A.; Lummaa, V. (2015). "Distinguishing between determinate and indeterminate growth in a long-lived mammal". BMC Evolutionary Biology. 15 (1): 1–9. Bibcode:2015BMCEE..15..214M. doi:10.1186/s12862-015-0487-x. PMC 4604763. PMID 26464339.
  81. "'Oldest known elephant in captivity' dies at 88 in India". BBC News. 7 February 2019.
  82. Pacifici, M.; Santini, L.; Di Marco, M.; Baisero, D.; Francucci, L.; Grottolo Marasini, G.; Visconti, P.; Rondinini, C. (2013). "Generation length for mammals". Nature Conservation. 5: 87–94. doi:10.3897/natureconservation.5.5734. Archived from the original on 26 January 2021. Retrieved 20 November 2020.
  83. Hart, Benjamin L.; Hart, Lynette A.; McCoy, Michael; Sarath, C. R. (November 2001). "Cognitive behaviour in Asian elephants: use and modification of branches for fly switching". Animal Behaviour. 62 (5): 839–847. doi:10.1006/anbe.2001.1815. ISSN 0003-3472. Archived from the original on 5 February 2017. Retrieved 18 March 2024.
  84. Barrett, Lisa P.; Benson-Amram, Sarah (August 2021). "Multiple assessments of personality and problem-solving performance in captive Asian elephants (Elephas maximus) and African savanna elephants (Loxodonta africana)". Journal of Comparative Psychology. 135 (3): 406–419. doi:10.1037/com0000281. ISSN 1939-2087. PMID 34166041.
  85. Wikramanayake, E.; Fernando, P.; Leimgruber, P. (2008). "Behavioral response of satellite-collared elephants to the tsunami in southern Sri Lanka". Biotropica. 38 (6): 775–777. doi:10.1111/j.1744-7429.2006.00199.x. S2CID 85358582.
  86. S., J. K.; Williams, J. H. (October 1950). "Elephant Bill". The Geographical Journal. 116 (4/6): 229. Bibcode:1950GeogJ.116..229S. doi:10.2307/1789395. ISSN 0016-7398. JSTOR 1789395.
  87. Aldous, P. (2006). "Elephants see themselves in the mirror". New Scientist. Archived from the original on 11 May 2015. Retrieved 24 August 2017.
  88. Poole, J. (1997). Elephants. World Life Library. p. 61. ISBN 978-0-896-58357-3.
  89. Sanderson, G. P. (1879). Thirteen years among the wild beasts of India. London: W.H. Allen and Co. p. 80.
  90. Nissani, M. (2006). "Do Asian elephants apply causal reasoning to tool use tasks?". Journal of Experimental Psychology: Animal Behavior Processes. 31 (1): 91–96. doi:10.1037/0097-7403.32.1.91. PMID 16435969.
  91. Wang, David Q-H; Carey, Martin C (7 August 2014). "Therapeutic uses of animal biles in traditional Chinese medicine: An ethnopharmacological, biophysical chemical and medicinal review". World Journal of Gastroenterology. 20 (29): 9952–9975. doi:10.3748/wjg.v20.i29.9952. ISSN 1007-9327. PMC 4123376. PMID 25110425.
  92. Nijman, Vincent; Shepherd, Chris R. (12 July 2017). "Ethnozoological assessment of animals used by Mon traditional medicine vendors at Kyaiktiyo, Myanmar". Journal of Ethnopharmacology. 206: 101–106. doi:10.1016/j.jep.2017.05.010. ISSN 0378-8741. PMID 28506903. Archived from the original on 21 May 2024. Retrieved 18 March 2024.
  93. Lim, T.; Campos-Arceiz, A. (2022). "A Review of Human-Elephant Ecological Relations in the Malay Peninsula: Adaptations for Coexistence". Diversity. 14 (1): 36. Bibcode:2022Diver..14...36L. doi:10.3390/d14010036.
  94. De la Torre, J. A.; Wong, E. P.; Lechner, A. M.; Zulaikha, N.; Zawawi, A.; Abdul-Patah, P.; Saaban, S.; Goossens, B.; Campos-Arceiz, A. (2021). "There will be conflict – agricultural landscapes are prime, rather than marginal, habitats for Asian elephants". Animal Conservation. 24 (5): 720–732. Bibcode:2021AnCon..24..720D. doi:10.1111/acv.12668.
  95. 95.0 95.1 95.2 Barua, M. (2010). "Whose issue? Representations of human-elephant conflict in Indian and international media". Science Communication. 32: 55–75. doi:10.1177/1075547009353177. S2CID 143335411. Archived from the original on 8 October 2013. Retrieved 29 January 2012.
  96. 96.0 96.1 Choudhury, A. U. (2004). "Human–Elephant Conflicts in Northeast India" (PDF). Human Dimensions of Wildlife. 9 (4): 261–270. Bibcode:2004HDW.....9..261C. doi:10.1080/10871200490505693. S2CID 145776270. Archived (PDF) from the original on 14 January 2014. Retrieved 27 September 2013.
  97. Fernando, P. (2000). "Elephants in Sri Lanka: past present and future" (PDF). Loris. 22 (2): 38–44. Archived (PDF) from the original on 14 January 2014. Retrieved 8 December 2012.
  98. Choudhury, A. U. (2007). "Impact of border fence along India – Bangladesh border on elephant movement" (PDF). Gajah. 26: 27–30. Archived (PDF) from the original on 25 April 2012. Retrieved 18 October 2011.
  99. Rangarajan, M., Desai, A., Sukumar, R., Easa, P. S., Menon, V., Vincent, S., Ganguly, S., Talukdar, B. K., Singh, B., Mudappa, D., Chowdhary, S., Prasad, A. N. (2010). Gajah: Securing the future for elephants in India Archived 19 June 2013 at the Wayback Machine. Report of the Elephant Task Force. Ministry of Environment and Forests, New Delhi.
  100. Choudhury, A. (2004). "Human–elephant conflicts in Northeast India". Human Dimensions of Wildlife. 9 (4): 261–270. doi:10.1080/10871200490505693.
  101. Woodroffe, R.; Thirgood, S.; Rabinowitz, A. (2005). "The impact of human–wildlife conflict on natural systems". In Rabinowitz, A.; Thirgood, S.; Rabinowitz, A. (eds.). People and Wildlife, Conflict or Co-existence?. Cambridge: Cambridge University Press. pp. 1–12. doi:10.1017/CBO9780511614774.002. ISBN 978-0-521-82505-4.
  102. Bist, S. S. (2006). "Elephant conservation in India – an overview" (PDF). Gajah. 25: 27–35. Archived (PDF) from the original on 3 June 2013. Retrieved 30 January 2012.
  103. Raihan Sarker, A. H. M.; Røskaft, E. (2010). "Human–wildlife conflicts and management options in Bangladesh, with special reference to Asian elephants (Elephas maximus)". International Journal of Biodiversity Science, Ecosystem Services & Management. 6 (3–4): 164–175. doi:10.1080/21513732.2011.554867.
  104. Santiapillai, C.; Wijeyamohan, S.; Bandara, G.; Athurupana, R.; Dissanayake, N.; Read, B. (2010). "An assessment of the human-elephant conflict in Sri Lanka". Ceylon Journal of Sciences (Bio. Sci.). 39 (1): 21. doi:10.4038/cjsbs.v39i1.2350.
  105. Hoare, R. E. (1999). "Determinants of human–elephant conflict in a land-use mosaic". Journal of Applied Ecology. 36 (5): 689–700. doi:10.1046/j.1365-2664.1999.00437.x.
  106. Rasmussen, L. E. L. (1999). "Evolution of chemical signals in the Asian elephant, Elephas maximus: behavioural and ecological influences". Journal of Biosciences. 24 (2): 241–251. doi:10.1007/BF02941206.
  107. Sukumar, R. (1995). "Elephant raiders and rogues". Natural History. 104 (7): 52–61.
  108. 108.0 108.1 Stiles, D. (2009). The elephant and ivory trade in Thailand. Archived 4 March 2012 at the Wayback Machine TRAFFIC Southeast Asia, Petaling Jaya, Selangor, Malaysia.
  109. Stiles, D. (2009). "The status of ivory trade in Thailand and Vietnam" (PDF). TRAFFIC Bulletin. 22 (2): 83–91. Archived from the original on 17 April 2019. Retrieved 8 December 2012.
  110. Flynn, V.; Stewart-Cox, B. & Melidonis, C. (2018). Skinned; The growing appetite for Asian elephants (PDF) (Report). London: Elephant Family. Archived (PDF) from the original on 26 April 2018. Retrieved 26 April 2018.
  111. Latimer E; Zong JC; Heaggans SY; Richman LK; Hayward GS (2011). "Detection and evaluation of novel herpesviruses in routine and pathological samples from Asian and African elephants: Identification of two new probosciviruses (EEHV5 and EEHV6) and two new gammaherpesviruses (EGHV3B and EGHV5)". Veterinary Microbiology. 147 (1–2): 28–41. doi:10.1016/j.vetmic.2010.05.042. PMC 2976818. PMID 20579821.
  112. Reid CE, Hildebrandt TB, Marx N, Hunt M, Thy N, Reynes JM, Schaftenaar W, Fickel J (2006). "Endotheliotropic elephant herpes virus (EEHV) infection. The first PCR-confirmed fatal case in Asia". Veterinary Quarterly. 28 (2): 61–64. doi:10.1080/01652176.2006.9695209. PMID 16841568. S2CID 25537428.
  113. Oo, Zaw Min; Aung, Ye Htut; Aung, Tin Tun; San, Nyo; Tun, Zaw Min; Hayward, Gary S.; Zachariah, Arun (January 2020). "Elephant Endotheliotropic Herpesvirus Hemorrhagic Disease in Asian Elephant Calves in Logging Camps, Myanmar". Emerging Infectious Diseases. 26 (1): 63–69. doi:10.3201/eid2601.190159. ISSN 1080-6040. PMC 6924905. PMID 31855135.
  114. Devkota, R.; Brant, S.V.; Thapa, A.; Loker, E.S. (2014) [Published online 2012]. "Sharing schistosomes: the elephant schistosome Bivitellobilharzia nairi also infects the greater one-horned rhinoceros (Rhinoceros unicornis) in Chitwan National Park, Nepal". Journal of Helminthology. 88 (1): 32–40. doi:10.1017/S0022149X12000697. PMID 23113960. S2CID 7039264. Archived from the original on 6 January 2018. Retrieved 18 March 2024.
  115. Bowen-Jones, E. & Entwistle, A. (2002). "Identifying appropriate flagship species: The importance of culture and local contexts". Oryx. 36 (2): 189–195. doi:10.1017/S0030605302000261.
  116. Barua, M.; Tamuly, J. & Ahmed, R.A. (2010). "Mutiny or Clear Sailing? Examining the Role of the Asian Elephant as a Flagship Species". Human Dimensions of Wildlife. 15 (2): 145–160. Bibcode:2010HDW....15..145B. doi:10.1080/10871200903536176. S2CID 143021377. Archived from the original on 8 October 2013. Retrieved 6 May 2012.
  117. Vasudev, D.; Goswami, V.; Srinivas, N.; La Nam Syiem, B.; Sarma, A. (2021). "Identifying important connectivity areas for the wide-ranging Asian elephant across conservation landscapes of Northeast India". Diversity and Distributions. 27 (12): 2510–2523. Bibcode:2021DivDi..27.2510V. doi:10.1111/ddi.13419. JSTOR 48632844. S2CID 244245085.
  118. Shelden, D. (2020). "World Elephant Day 2020". The Atlantic. Archived from the original on 7 September 2020. Retrieved 6 September 2020.
  119. Shelden, D. (2020). "OKC Zoo to host 2nd annual Asian Elephant Awareness Month". The City Sentinel. Archived from the original on 26 September 2020. Retrieved 6 September 2020.
  120. Madhusudan, M.D.; Sharma, Narayan; Raghunath, R.; Baskaran, N.; Bipin, C.M.; Gubbi, Sanjay; Johnsingh, A.J.T.; Kulkarni, Jayant; Kumara, Honnavalli N.; Mehta, Prachi; Pillay, Rajeev; Sukumar, Raman (July 2015). "Distribution, relative abundance, and conservation status of Asian elephants in Karnataka, southern India". Biological Conservation. 187: 34–40. Bibcode:2015BCons.187...34M. doi:10.1016/j.biocon.2015.04.003. ISSN 0006-3207.
  121. Baskaran, Nagarajan (26 October 2013). "An overview of Asian Elephants in the Western Ghats, southern India: implications for the conservation of Western Ghats ecology". Journal of Threatened Taxa. 5 (14): 4854–4870. doi:10.11609/jott.o3634.4854-70. ISSN 0974-7893.
  122. "Project Elephant". The Official Website of Ministry of Environment, Forest and Climate Change, Government of India. Government of India. Archived from the original on 21 May 2024. Retrieved 1 April 2024.
  123. Bandara, Ranjith; Tisdell, Clem (1 April 2003). "Comparison of rural and urban attitudes to the conservation of Asian elephants in Sri Lanka: empirical evidence". Biological Conservation. 110 (3): 327–342. doi:10.1016/S0006-3207(02)00241-0. ISSN 0006-3207. Archived from the original on 21 May 2024. Retrieved 20 May 2024.
  124. Jeerawat na Thalang (2020). "It's risky, but elephants are feeling frisky". Bangkok Post. Archived from the original on 2 October 2021. Retrieved 6 September 2020.
  125. Elephant Conservation Network. Proposed Eastern Extension to Salakpra Wildlife Sanctuary (PDF). The Elephant Conservation Network (Report). Archived (PDF) from the original on 21 September 2020. Retrieved 6 September 2020.
  126. Parashar, U. (2020). "Assam students, environment activists launch online campaign to stop coal mining in elephant reserve". Hindustan Times. Archived from the original on 29 June 2020. Retrieved 6 September 2020.
  127. Clubb, R.; Rowcliffe, M.; Lee, P.; Mar, K. U.; Moss, C. & Mason, G. J. (2008). "Compromised Survivorship in Zoo Elephants" (PDF). Science. 322 (5908): 1649. Bibcode:2008Sci...322.1649C. doi:10.1126/science.1164298. hdl:1893/974. PMID 19074339. S2CID 30756352. Archived (PDF) from the original on 14 May 2014. Retrieved 9 December 2012.
  128. Roocroft, Alan; Oosterhuis, James (December 2000). "Foot Care for Captive Elephants". The Elephant's Foot. pp. 1–5. doi:10.1002/9780470292150.ch5. ISBN 978-0-8138-2820-6. Archived from the original on 21 May 2024. Retrieved 19 May 2024.
  129. Wiese, R. J. (2000). "Asian elephants are not self-sustaining in North America". Zoo Biology. 19 (5): 299–309. doi:10.1002/1098-2361(2000)19:5<299::AID-ZOO2>3.0.CO;2-Z.
  130. Saragusty, J.; Hermes, R.; Goritz, F.; Schmitt, D.L. & Hildebrandt, T. B. (2009). "Skewed birth sex ratio and premature mortality in elephants". Animal Reproduction Science. 115 (1–4): 247–254. doi:10.1016/j.anireprosci.2008.10.019. PMID 19058933. Archived from the original on 21 June 2013. Retrieved 9 December 2012.
  131. "Tourism driving illegal elephant trade in Burma and Thailand – video". The Guardian. 2012. Archived from the original on 2 December 2016. Retrieved 11 December 2016.
  132. Hile, J. (2002). "Activists Denounce Thailand's Elephant 'Crushing' Ritual". National Geographic Society. Archived from the original on 18 October 2002. Retrieved 1 October 2014. Just before dawn in the remote highlands of northern Thailand, west of the village Mae Jaem, a four-year-old elephant bellows as seven village men stab nails into her ears and feet. She is tied up and immobilized in a small, wooden cage. Her cries are the only sounds to interrupt the otherwise quiet countryside. The cage is called a 'training crush.' It's the centerpiece of a centuries-old ritual in northern Thailand designed to domesticate young elephants. In addition to beatings, handlers use sleep-deprivation, hunger, and thirst to 'break' the elephants' spirit and make them submissive to their owners.
  133. Han, Jianghua (3 July 2019). "The Study of Thai Elephant Culture Based on the "Elephant Metaphors" in Thai Idioms". Comparative Literature: East & West. 3 (2): 148–162. doi:10.1080/25723618.2019.1701306. ISSN 2572-3618.
  134. "Thailand and Laos elephant". South East Asia Globe. 28 February 2022. Archived from the original on 1 October 2023. Retrieved 1 December 2023.
  135. Sukumar, Raman (26 July 2016). "Iconic Fauna of Heritage Significance in India" (PDF). Indian Journal of History of Science. 51 (2.2). doi:10.16943/ijhs/2016/v51i2.2/48450. ISSN 0019-5235. Archived (PDF) from the original on 4 February 2023. Retrieved 21 May 2024.
  136. Baker, Iljas; Kashio, Masakazu (2002). Giants on Our Hands: Proceedings of the International Workshop on the Domesticated Asian Elephant, Bangkok, Thailand, 5 to 10 February 2001. FAO Regional Office for Asia and the Pacific. ISBN 978-974-90757-1-5. Archived from the original on 21 May 2024. Retrieved 21 May 2024.
  137. Rangarajan, M. (2001). "The Forest and the Field in Ancient India". India's Wildlife History. Delhi: Permanent Black. pp. 1–10. ISBN 978-8-178-24140-1. Archived from the original on 17 March 2024. Retrieved 19 March 2018.
  138. Lim, Teckwyn (2023). "From the mouth of the mahout: a review of elephant command words". In Lainé, De Nicolas; Keil, P. G.; Khatijah Rahmat (eds.). Composing Worlds with Elephants: Interdisciplinary Dialogues. Marseille: IRD Éditions. pp. 137–155. ISBN 978-2-7099-2993-6.
  139. Liehrmann, Océane; Crawley, Jennie A. H.; Seltmann, Martin W.; Feillet, Sherine; Nyein, U. Kyaw; Aung, Htoo Htoo; Htut, Win; Lahdenperä, Mirkka; Lansade, Léa; Lummaa, Virpi (29 July 2021). "Handler familiarity helps to improve working performance during novel situations in semi-captive Asian elephants". Scientific Reports. 11 (1): 15480. doi:10.1038/s41598-021-95048-w. ISSN 2045-2322. PMC 8322261. PMID 34326446.
  140. Winn, P. (2017). "War elephants still exist. But only in one forbidding place". Public Radio International (PRI). Archived from the original on 1 March 2017. Retrieved 1 March 2017.
  141. 141.0 141.1 Rajamangalam), Nīlakaṇṭha (1985). The Elephant-lore of the Hindus: The Elephant-sport (Matanga-lila) of Nilakantha. Motilal Banarsidass Publications. pp. 1-10. ISBN 978-8-12080-005-2.
  142. Sharma, Jayeeta (August 2011). Empire's Garden: Assam and the Making of India. Duke University Press. p. 25. ISBN 978-0-82235-049-1. Archived from the original on 24 May 2022. Retrieved 15 May 2024.
  143. Upham, E. (1829). The History and Doctrine of Budhism: Popularly Illustrated: with Notices of the Kappooism, Or Demon Worship, and of the Bali, Or Planetary Incantations, of Ceylon. London: R. Ackermann.
  144. Ling, Trevor (March 1971). "Sinhalese buddhism in regent anthropological writing: Some implications". Religion. 1 (1): 49–59. doi:10.1016/0048-721X(71)90007-8. ISSN 0048-721X. Archived from the original on 15 May 2024. Retrieved 15 May 2024.
  145. "Chinese Zodiac". Warriortours. Archived from the original on 15 September 2018. Retrieved 12 June 2017.

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