Curtin, Charles B. Department of Biology, Creighton University, Omaha, Nebraska.
Last reviewed:June 2014
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The name for two species of even-toed (artiodactylid) ungulates that form the family Hippopotamidae. Both mammalian species of hippopotamus (often termed hippo) occur in Africa. The great African hippopotamus (Hippopotamus amphibius; see illustration) inhabits the rivers of tropical Africa; in contrast, the pygmy hippopotamus (Choeropsis liberiensis) lives near the rivers of western Africa, but is more terrestrial. See also: Africa; Artiodactyla; Mammalia
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