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Hippopotamus: Pygmy Hippopotamus
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Human activity severely threatens the survival of the pygmy hippopotamus. Hunting and deforestation have both taken their toll, splitting the species into a number of isolated populations. Only a few thousand pygmy hippos remain in the wild. One subspecies, which lived in the delta of the Niger River, has already become extinct. However, the pygmy hippo thrives in captivity, and has been raised in a number of zoos around the world. The American Zoo and Aquarium Association’s Species Survival Plan, which aims to ensure the future populations of zoo animals currently threatened in the wild, includes the pygmy hippo.
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The great African hippopotamus is the largest living artiodactylid. The ears are small and flexible, and the nostrils and eyes protrude so that they are out of the water as the animal floats. The skin is almost devoid of hair. The feet end in four toes enclosed in round hoofs. The pygmy hippopotamus is about the size of a large pig and is a more solitary species and does notlive in large herds, as does the common species.
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The pygmy hippopotamus, Choeropsis liberiensis, is about half the size of the common hippopotamus. It is found only in western Africa, especially in Liberia. It is black on top, with a greenish sheen; below, it is yellowish-green. It is less aquatic than the common hippopotamus and is found in cool forests and in marshlands. Pygmy hippopotamuses almost always travel in pairs, rarely forming a herd.
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The hippopotamus is the type genus of the family Hippopotamidae. The Pygmy Hippopotamus belongs to a different genus in Hippopotamidae, either Choeropsis or Hexaprotodon. Hippopotamidae are sometimes known as Hippopotamids. Sometimes the sub-family Hippopotaminae is used. Further, some taxonomists group hippopotamuses and anthracotheres in the super-family Anthracotheroidea or Hippopotamoidea.
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The less familiar pygmy hippopotamus of West Africa, Hexaprotodon (Choeropsis) liberiensis, exists in two populations. One ranges in Guinea, Sierra Leone, Liberia and Côte d'Ivoire. The other population, with a different shape to the skull, ranged until recently in the Niger Delta but may now be extinct.
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Pygmy hippopotamus (Hexaprotodon liberiensis) is mammal that belongs to order of Artiodactyla. It lives in rivers and swamps in dense forests in western Africa (Ivory Coast, Liberia, and Sierra Leone, and possibly Nigeria and Guinea). This kind of hippopotamus is considered to be critically endangered.
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Pygmy Hippopotamus