First, to clarify, the swollen red bottom happens only on female baboons. It's a sign that they're ready to mate, so yes, it's about sex. And when we …

All seven species of spider monkey are large — they're among the largest of the New World monkeys, existing only in Central and South America from …

At first glance, it's easy to believe that the slow loris, a tiny primate with wide, saucer-like eyes is nothing more than a Beanie Boo come to life. …

Many people think of a monkey as a cute, brown, fuzzy primate that uses vines to swing from tree to tree. But I bet you didn't know that there are …

We humans have a hard time seeing ourselves as animals, but it's true — we're just as much an animal as a leech or a leopard. But though we don't …