Hippopotamus 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 cetaceans (whales, dolphins, porpoises, etc.) from which they diverged
East Brazilian pygmy owl East Brazilian pygmy owl The East Brazilian pygmy owl ("Glaucidium minutissimum"), also known as least pygmy-owl or Sick's pygmy-owl, is a small owl in the typical owl family. It has been argued that the here used scientific name actually belongs to the Pernambuco pygmy owl, in which case the East Brazilian pygmy owl should be referred to "G. sicki" (König & Weick, 2005). This has not gained widespread recognition. Formerly, this species included the Colima pygmy owl, Tamaulipas pygmy owl, Central American pygmy owl, subtropical pygmy owl, and Baja pygmy owl as subspecies. This species has a very large range.