Utente:Panjabi/Prove: differenze tra le versioni
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Riga 94:
A causa dell'aspetto così simile, in passato si credeva che il rinoceronte di Sumatra fosse imparentato da vicino con il [[Coelodonta antiquitatis|rinoceronte lanoso]] (''Coelodonta antiquitatis''). Quest'ultimo, chiamato così per il folto mantello così simile a quello del rinoceronte di Sumatra, fece la sua prima comparsa in Cina e durante il [[Pleistocene superiore|Pleistocene Superiore]] si diffuse su tutto il continente eurasiatico, dalla [[Corea]] alla [[Spagna]]. Sopravvisse all'ultima [[era glaciale]], ma, come il [[Mammuthus primigenius|mammut lanoso]], scomparve completamente circa 10.000 anni fa. Malgrado alcune differenze morfologiche <ref name=Cerdeno/> , recenti analisi molecolari hanno supportato l'ipotesi che le due specie siano ''sister taxa'' <ref name=Orlando>{{Cite journal | journal = Molecular Phylogenetics and Evolution | volume = 28 | issue = 2 | month = September | year = 2003 | pages = 485–499 | title = Ancient DNA analysis reveals woolly rhino evolutionary relationships | author = Orlando, Ludovic | coauthors = Jennifer A. Leonard, Aurélie Thenot, Vincent Laudet, Claude Guerin, and Catherine Hänni | doi = 10.1016/S1055-7903(03)00023-X }}</ref> . Molti resti fossili sono stati attribuiti a specie appartenenti a ''Dicerorhinus'', ma attualmente ne sopravvive solo una <ref name=Groves1972/> .
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[[Image:Sumatran Rhino skeleton.jpg|thumb|
Two thick folds of skin encircle the body behind the front legs and before the hind legs. The rhino has a smaller fold of skin around its neck. The skin itself is thin, 10–16 mm (0.4–0.6 in), and in the wild the rhino appears to have no [[subcutaneous]] fat. Hair can range from dense (the most dense hair in young calves) to scarce and is usually a reddish brown. In the wild this hair is hard to observe because the rhinos are often covered in mud. In captivity, however, the hair grows out and becomes much shaggier, likely because of less abrasion from walking through vegetation. The rhino has a patch of long hair around the ears and a thick clump of hair at the end of the tail. Like all rhinos, they have very poor vision. The Sumatran Rhinoceros is fast and agile; it climbs mountains easily and comfortably traverses steep slopes and riverbanks.<ref name="van Strien"/><ref name=Groves1972/><ref name=LitStud>{{Cite journal | title = Dicerorhinus sumatrensis (Fischer), the Sumatran or two-horned rhinoceros: a study of literature | last = van Strien | first = N.J. | year = 1974 | journal = Mededelingen Landbouwhogeschool Wageningen | volume = 74 | issue = 16 | pages = 1–82}}</ref>
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