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
Northern pygmy salamander Northern pygmy salamander The northern pygmy salamander (or northern pigmy (sic), "Desmognathus organi") is a terrestrial species of salamander in the family Plethodontidae and genus "Desmognathus". Along with the southern pygmy ("D. wrighti") and the seepage salamander ("D. aeneus"), these are some of the smallest salamander species in North America and can be found in higher elevations in the southern Appalachians. "Desmognathus organi" can be identified by its small size, averaging only 40–60 mm total length, and its distinct herringbone pattern on the dorsal side and copper colored eyelids, which are traits only shared with "D. wrighti". Dorsal coloration can