A newly described species from the Burgess Shale had three eyes, clawed limbs, and a tail full of gills—plus internal organs ...

A study in Uganda shows how often chimps use medicinal plants and other forms of health care — and what that says about the roots of human medicine.

But Mosura was different. Instead of the familiar streamlined body with flaps and claws, this little predator had something ...

Cambrian Period creatures known as sea moths seemed alien because of their additional eye, but a study finds anatomical ...

While hippos may appear to be gentle, oversized beings that enjoy lying in the sun and relaxing in the water, they can be ...