Stories have long been swapped on awkward first kisses and princesses smooching frogs, but a new study suggests the earliest instance of two lips pressing together happened up to 21 million years ago ...

Stories centered around true love's kiss might be tales as old as time. And, according to a new study, kisses might even have been around before humans walked the earth. Humans kiss each other ...

Humanity's first kiss dates back 21 million years and our ape ancestors may have locked lips with Neanderthals, a study has found. Although it was known that Homo sapiens and Neanderthals interbred, ...