Hippo is huge animal but as peaceful as in the design. The common hippopotamus, or hippo, is a large, mostly herbivorous, semiaquatic mammal native to sub-Saharan Africa. It is one of only two extant species in the family Hippopotamidae, the other being the pygmy hippopotamus. 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 about 55 million years ago.The FamiLane Collection’s premium T-shirt should be a big part of any kids’ wardrobe. It wears rough and tough for kids who play the same way. Ideal for playing outside or sitting quietly doing homework, the premium T-shirt from the FamiLane Collection is as versatile and durable as it gets.