New research suggests the first kiss occurred 16.9-21.5 million years ago between ape ancestors in Africa. Scientists ...

Kissing is more than just "mouth-to-mouth" touching, and the study doesn't really shed much light on why humans kiss the way ...

A new study led by the University of Oxford has found evidence that kissing evolved in the common ancestor of humans and ...

Kissing did not begin with star-crossed human lovers but with the primate ancestors of great apes around 20 million years ago ...

Smooching might be a familiar behavior, but it's more mysterious than you would probably imagine. While kissing might feel ...