DENVER — Denver Zoo Conservation Alliance said this week that its beloved hippos' scheduled transfer to a different state ...

If you live in South Africa, hippos are just part of life. Watch these large semi-aquatic mammals cause a rather unusual ...

New research suggests that kissing probably predates humanity and evolved between 16.9 million and 21.5 million years ago, after the ancestor of the great apes split from the lesser apes, or gibbons.

In our complete guide to bird lifecycles, we lead you from nesting and hatching all the way back to the mating season.

Kissing stretches back roughly 21 million years, to the shared ancestor of humans and other large apes, according to the ...

Discover 10 of the most unusual bathroom habits found in the animal kingdom - from the weird and wacky to the gross and ...