Jeff Bezos and Lauren Sánchez shared a romantic kiss on their way to their star-studded wedding welcome party in Venice, Italy. Photographers snapped the couple smooching on the lips while aboard a ...

Kissing, for all popularity, is a bit of a mystery. Scientists have long debated when humans’ ancestors first put their lips together, and whether the act is simply a cultural trait. A new study ...

In the words of Dua Lipa, one kiss is all it took about 21 million years ago. That's roughly when scientists estimate that kissing first emerged in the common ancestor of humans and other great apes.