12 Baby Hippo Pictures That Will Make You Smile In Ways You Never Knew Possible

Hippopotamus, (Hippopotamus amphibius), also called hippo or water horse, amphibious African ungulate mammal. Often considered to be the second largest land animal (after the elephant), the hippopotamus is comparable in size and weight to the white rhinoceros (Ceratotherium simum) and the Indian rhinoceros (Rhinoceros unicornis).