Hippopotamus Surprise egg" of the Italian chocolate company Ferrero SpA. Hippopotamus The common hippopotamus ("Hippopotamus amphibius"), or hippo, is a large, mostly herbivorous, semiaquatic mammal native to sub-Saharan Africa, and one of only two extant species in the family Hippopotamidae, the other being the pygmy hippopotamus ("Choeropsis liberiensis" or "Hexaprotodon liberiensis"). The name comes from the ancient Greek for "river horse" (). After the elephant and rhinoceros, the common hippopotamus is the third-largest type of land mammal and the heaviest extant artiodactyl. Despite their physical resemblance to pigs and other terrestrial even-toed ungulates, the closest living relatives of the Hippopotamidae are
Patagonia (mammal) as opposed to earlier forest environments in the region. This coincides with "Patagonia"'s burrowing, grazing habits. A large variety of mammal species are known, including caviomorph rodents such as "Dudumus", as well as the rodent-like argyrolagoidean paucituberculates. "Patagonia" likely avoided competition in its fairly specialised niche. Patagonia (mammal) Patagonia is an extinct genus of non-placental mammal from the Miocene of Argentina. Traditionally considered a metatherian "incertae sedis", more recent analysis have shown it to be a gondwanathere. It is the youngest allothere species known. Currently, a single species is known, "P. peregrina", hailing from the Colhuehuapian-dating deposits of the Sarmiento