The whites of your eyes are not an accident. They are, scientists now believe, one of the most sophisticated social communication tools in the animal kingdom.

A team of evolutionary scientists, dermatologists and wildlife specialists affiliated with several institutions in Japan, Kenya and France has found that human skin wounds take nearly three times as ...

We are the worst primates when it comes to wound healing, according to a new study. Our wounds heal nearly three times slower than those of chimpanzees, our closest living relatives, and other ...

Humans and chimpanzees share a close evolutionary relationship, genetically linking us. As a result, the two species can pass on infection and disease to one another. The world is full of potential ...

Humans appear to be the only species clearly proven to shed tears specifically because of emotions. Elephants, primates, and dogs show behaviors and biological responses that come closest to human ...

Examples for positive, neutral and negative expressions. Copyright held by the authors. Humans perceive emotional expressions displayed by non-human primates and ...

Humans are the only primates that walk on two legs. Scientists believe that their uniquely shaped pelvis, the bones that connect the spine to the legs, makes this possible. However, researchers didn’t ...

A new study questions whether human violence is natural, finding that mild aggression and lethal violence follow different ...