Marius Els raised Humphrey the hippo like a member of his own family, riding on his back, brushing his teeth and even building him a private lake. But six years later, the animal had grown to more ...

Hippos are often portrayed as slow, peaceful animals spending their days submerged in rivers or resting in muddy water. But ...

Add Yahoo as a preferred source to see more of our stories on Google. Hippo underwater, hippopotamus in water through glass© Lena Ivanova/Shutterstock.com The post Inside the World of the Hippopotamus ...

A new aerial survey shows that the hippo population in Virunga National Park in the Democratic Republic of Congo will soon be extinct due to rampant poaching for hippo teeth and meat. Gland, ...