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The hippopotamus is a megaherbivore and is exceeded in size among land animals only by elephants and some rhinoceros species. The mean adult weight is around 1,480 kg (3,260 lb) for bulls and 1,365 kg (3,009 lb) for cows.
Hippopotamus is a genus of artiodactyl mammals consisting of one extant species, Hippopotamus amphibius, the river hippopotamus (or simply the hippopotamus), and several extinct species from both recent and prehistoric times.
There are two living species of hippopotamid in two genera; the pygmy hippo, Choeropsis liberiensis of the forests of west Africa, and the common hippo, Hippopotamus amphibius. The term hippopotamus can also be applied to hippopotamids in general, although it is most frequently used for the common hippo and its respective genus.
This list may not reflect recent changes. Hippopotamidae; Hippopotamus; A. Allenton hippopotamus; American Hippo bill; H. Hippopotamus (hieroglyph) Hippopotamus (genus)
All hippopotamus species are semi-aquatic, with skin that is prone to cracking if it dries out. They prefer to spend most of their day submerged in water and come out at night to graze and feed.
According to Pygmy Hippo Conservation, the hippo species, native to West Africa, was declared endangered in 1993, when only 2,000–2,500 individuals remained in the wild. "Pygmy hippos are ...
A rare nocturnal forest creature, the pygmy hippopotamus is a difficult animal to study in the wild. Pygmy hippos were unknown outside West Africa until the 19th century. Introduced to zoos in the early 20th century, they breed well in captivity and the vast majority of research is derived from zoo specimens. [4]
A hippopotamus (Hippopotamus amphibius) An Indian rhinoceros ( Rhinoceros unicornis ) Pachydermata (meaning 'thick skin', from the Greek παχύς , pachys , 'thick', and δέρμα , derma , 'skin') is an obsolete order of mammals described by Gottlieb Storr , Georges Cuvier , and others, at one time recognized by many systematists .