Pygmy hippos have become an internet favorite for their shiny bodies and adorable behavior. Here's what to know about this ...

Even the king of the jungle can have a bad day when trying to cross a river guarded by an aggressive hippo. Three lions found out the hard way that this river crossing was a giant hippo’s territory.

In 1953, a 10-year-old star named Gayla Peevey gave the world something to yearn for when she recorded the classic song, "I want a Hippopotamus for Christmas." Nearly 70 years later, a zoo in Virginia ...