A new study that examines how kissing evolved suggests that ape ancestors and early humans like Neanderthals probably locked lips with their friends and sexual partners. The behavior may date back 21 ...

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

A new study released on Wednesday found that humanity's first kiss occurred roughly 21 million years ago, predating humans.

Our lips say a lot, from words to kisses, whether the embraces of new lovers, friends greeting one another, or parents saying goodnight to kids. No matter what kind of kiss, passionate or tender, they ...

Kissing-like behaviors exist across the animal kingdom. But why? A scientist explains why humans are so drawn to each other's lips, and a photographer documents the power of a kiss. Among the many ...

Kissing was a trait that originated in the ancestors of large apes 21.5 to 16.9 million years ago, long before Romeo and ...

It is not a recent cultural development. A new study in Evolution and Human Behavior suggests kissing may date back 21 ...

New research suggests that kissing probably predates humanity and evolved between 16.9 million and 21.5 million years ago, after the ancestor of the great apes split from the lesser apes, or gibbons.

Neanderthals are usually seen as brutish and primitive, but research now suggests our ancestors kissed often - and even with ...