Our closest animal relatives, bonobos and chimpanzees, share a quick hug or a pat on the back before having their meal, to ...

Physical touch may be an important evolutionary tool to help manage social tension and keep the peace. That is according to a ...

This behavior is further evidence of chimpanzees' deep interaction with their environment," added Morgan "On a daily and ...

About six months after the death of Ai -- a female chimpanzee celebrated as a "genius" for her ability to understand numbers ...