Why is swapping saliva something all human societies have normalised? Turns out kissing isn't just a human thing — all sorts of species appear to kiss, and new research suggests Neanderthals did it ...

You've got to get in the mood for this next story. It's all about kissing. Smooching goes way back - 21 million years, in fact. That's according to new research carried out about the origins of ...

A kiss on the lips doesn't always mean romantic love. Some kisses can be confusing, entangle emotions, or happen without a formal relationship. When someone kisses you on the lips without being in a ...

Why do we kiss our lovers on the lips? We could show romantic passion by rubbing foreheads, locking elbows, or by turning back-to-back and bumping butts. We could even mash our ears together. Legend ...

Apart from following customs with murky origins, what’s the reasoning behind giving someone a New Year’s kiss? This kiss is ...