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The Asian or Asiatic elephant (Elephas maximus)

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EVOLUTION:

AsianElephant (Elephasmaximus)

TheMeaningoftheWord“Elephant”

ThewordelephanthasbothGreekandLatinorigins.Thisappliesspecificallytotheelephant’sscientificgenusname“Elephas”.InGreeklinguistics,elephosrepresentsanantleredbeastorstag.

TherootsofthewordelephantinLatinisdividedintotwowords:“ele”whichmeansarchand“phant”whichmeanshuge.

Thegenusname,Loxodonta,fortheAfricanelephantmeanslozenge-shapedteethforthechewingsurfaces.

TheorderunderwhichElephantsareclassifiedistheProboscidea.Thisisforoneoftheelephant'smostinterestingphysicalfeatures.Itissomethingthatattractscuriosityfromaroundtheworldforelephantsalongwithmanyotheraspectsinthepastonlyascribedtothehuman,suchas,rudimentarytooluse,complexsocialbehaviours,andreverenceforadeadfamilymemberorfriend.Itistheirtrunkorproboscis;themeaningofProboscideaspeciesissimplyanimalswithtrunks/proboscis.

ElephasMaximus/AsianElephant(Genus)

Ataboutthesametimethatthemammothwascomingintoexistence,sowastheAsianelephant,Elephas.ItalsooriginatedinAfricaanditisbelievedtohaveastrongerevolutionarytietomammothsthanithaswithAfricanelephants.

AsianelephantsspreadthroughoutEurasiaandtheynowexistinIndia,SriLanka,China,BangladeshandSoutheastAsia.ElephasmaximusindicusistheIndiansubspecies.ElephasmaximussumatranusisthesubspeciesofSumatra.OntheislandofSriLanka,thereisalsoasubspeciescalledElephasmaximusmaximus.Theisolationthattheislandhasprovidedhasallowedadivergentevolutiontooccur.Mostofthebullstherearetuskless,thoughtheyarenotaseparatespecies.Thismaybetheresultofaselectionprocessinwhich,overaperiodofcenturies,bullswithparticularlylargetuskswereshotbyivoryhuntersandhadfeweroffspringasaresult.Thisisasad,butinterestingexampleoftherolethathumanscanplayintheevolutionofotherspecies.

References

  • http://www.eleaid.com/elephant-information/elephant-evolution/
  • http://elephant.elehost.com/About_Elephants/Stories/Evolution/evolution.html

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Vanessa Faith Dulay
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