The hippopotamus, also known as a hippo, is a massive amphibious mammal that spends most of its time near "lakes, pools, mudholes, or in the preferred moving waters of rivers," according to the San ...

Hippos are primarily herbivorous, but they have been observed to engage in omnivorous behavior. Hippos are the third largest living land mammal. Hippos, residing in East and sub-Saharan Africa, cannot ...