Why would a rhino pick a fight with a hippo, and who has the advantage? Do hippos and rhinos usually get along? Despite their seemingly calm demeanor as they float through the water, hippos are ...

The hippopotamus, a semi-aquatic hoofed mammal that is native to parts of sub-Saharan Africa, spends most of the day either ...

Among the large mammals that roamed prehistoric North America was a type of rhinoceros that seems to have lived in the water, much like a modern hippopotamus. The extinct rhinoceros, known as ...