Hippopotamidae
English: Hippos family.
Clades: Artiodactyla; Laurasiatheria; Mammalia; Animals.
Genera: Hippopotamus; Choeropsis.
Zoology: stout, naked-skinned, amphibious animals; they have three-chambered stomachs; walking on four toes on each foot; they resemble pigs physiologically; pseudoruminants like camels.
Taxonomy
Closest living relatives are the cetaceans, whales and dolphins.
Species
Choeropsis liberiensis: pygmy hippo; forests of west Africa.
Hippopotamus amphibius: common hippo.