We used this definition to trawl published scientific papers, searching for observations of kissing in the group of monkeys ...

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

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 ...

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

Gene Simmons and Bruce Kulick tell UCR about an important Kiss tour that changed their relationship with the fans.

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

OK, so your dog did, in fact, bring your sock to their bed. You might notice that they are avoiding eye contact with you at ...

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