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Hippopotamidae is a family of stout, naked-skinned, and semiaquatic artiodactyl mammals, possessing three-chambered stomachs and walking on four toes on each foot. While they resemble pigs physiologically, their closest living relatives are the cetaceans .
The hippopotamus (Hippopotamus amphibius) (/ ˌ h ɪ p ə ˈ p ɒ t ə m ə s /; pl.: hippopotamuses; often shortened to hippo (pl.: hippos), further qualified as the common hippopotamus, Nile hippopotamus and river hippopotamus, is a large semiaquatic mammal native to sub-Saharan Africa.
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.
The Hippopotamidae are believed to have evolved in Africa, and while at one point the species spread across Asia and Europe, no hippopotami have ever been discovered in the Americas. Starting 7.5 to 1.8 mya the Archaeopotamus , likely ancestors to the genus Hippopotamus and Hexaprotodon , lived in Africa and the Middle East.
The Hippopotamidae are believed to have evolved in Africa; the oldest known hippopotamid is the genus Kenyapotamus, which lived in Africa from 16 to . While hippopotamid species spread across Asia and Europe, no hippopotamuses have ever been discovered in the Americas, although various anthracothere genera emigrated into North America during ...
The hippos (Hippopotamidae) comprise two groups, the common hippo and the pygmy hippo. The cetaceans comprise 72 species and two parvorders: toothed whales ( Odontoceti ) and baleen whales ( Mysticeti )
This category contains articles about taxa in the family Hippopotamidae - the hippopotamuses or hippopotami For more information, see Hippopotamidae . Subcategories
Hippopotamus behemoth is an extinct species of hippopotamus from the Early Pleistocene of the Levant.Fossils of it, and its probable ancestor, H. gorgops, are found in the ‘Ubeidiya site in the southern Levant, dating to the Early Pleistocene, around 1.4 million years ago.