Researchers have never had a complete baseline for understanding the DNA of marmosets, a species of tree-dwelling monkey, ...

We humans love our pets, but we aren’t the only great apes who buddy up with other species. Researchers have documented ...

When you learned about the history of human evolution in school, there's a good chance you were shown one all-too-familiar image. That picture probably showed a conga line of human-like creatures, ...

With their bright red, hairless chests and grass-grazing lifestyle, gelada monkeys are quite unusual. They are the only primate, other than humans, to primarily live on land instead of in trees, and a ...

Why do humans keep pets? A new international study suggests that some of the behavioral foundations of human-animal ...

The fact that monkeys can keep "pets" or even raise other species could hint at the evolutionary origins of empathy.

New research indicates monkeys and humans process geometric shapes similarly. This suggests geometric intuition evolved long ...