Scientists have traced kissing back to early primates, suggesting it began long before humans evolved. Their analysis points ...

A peer-reviewed study published in the 'Journal of the Human Behavior and Evolution Society' suggested that the world’s first ...

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

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

Kissing stretches back roughly 21 million years, to the shared ancestor of humans and other large apes, according to the ...

Rather than being a recent cultural development, kissing may have been practised by other early humans like Neanderthals and ...

Scientists found that kissing likely originated millions of years ago in great apes and was shared by early human relatives, ...

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 ...

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

Kissing is something of a mystery, being "only documented in 46 percent of human cultures," noted psychologist Catherine ...