CINCINNATI (WKRC/CNN Newsource) - A new study found that chimpanzees hold hands, hug, and kiss to ease tension, just like ...

Since all three ape species diverged from a common ancestor that lived roughly six million to eight million years ago, the ...

Touching, embracing and kissing before stressful events may be an ancient way of building trust, according to scientists studying the behaviour of our closest ape relatives. Researchers at Durham ...