In the words of Dua Lipa, one kiss is all it took about 21 million years ago. That's roughly when scientists estimate that ...

Humans have been kissing for a long time, according to an article published in the journal Science on Thursday. Researchers studied cuneiform texts from ancient Mesopotamia in an effort to unlock the ...

Researchers have delved into the ancient past to discover when romantic kissing likely originated and the pathogens, such as the herpes simplex virus, that have followed the practice from then until ...

For well over 150 years, the Westwood Kissing Tree has towered over countless couples enjoying their first smooch — at least that's what local legend says. This Valentine's Day, it will get its own ...