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

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 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 ...

The first kiss in history probably took place over 16.9 million years ago — long before humans even existed, a new study suggests.

Humanity 's first kiss dates back 21 million years and our ape ancestors may have locked lips with Neanderthals, a study has ...

Researchers trace the origins of the first kiss to early primates 20 million years ago, revealing the deep roots of human ...

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

By Toby Sterling AMSTERDAM (Reuters) -Kissing did not begin with star-crossed human lovers but with the primate ancestors of ...

Evolutionary biologists have been investigating the evolutionarily origins of kissing by taking a broad look at behaviour in ...

If you think about it, kissing is really weird. You press your sensitive, nerve-filled facial muscles against another ...