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

Evolutionary biologists don’t know why we kiss — but new research suggests kissing evolved long before humans existed.

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

Scientists suggest that the act of kissing evolved over 21 million years ago, a practice shared by humans and their great ape ...

Our results paint early apes in an amorous light, showing that the ancestors of large apes were kissing each other as far ...

Scientists have traced the origins of kissing back more than 21 million years, and now know why many different species kiss ...

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 ...

A new study looks at how the mouth-on-mouth smooch came into being, and concludes that Neanderthals also kissed.

A better title would perhaps have been the See You Soon Tour, as Kiss went on to perform more than 1,000 additional concerts ...