Humans have a distinct size advantage. A chimp uses all of its limbs to run, moving at 25mph, while humans can only sprint on two legs with an average speed of 18mph. Chimps are faster than men ...

Chimpanzees and bonobos are amazingly similar ... Bonobos are about the same size as chimps but are more slender and lithe, with longer legs and smaller, rounder heads. Chimps have a heavier ...

Chimpanzees and bonobos, share close genetic ties with humans but exhibit distinct physical and behavioral traits.

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.

In contrast, chimpanzees (Pan troglodytes) are born with pink, hairless faces and dark hair, both of which get darker as they ...