Babylonian clay model showing a nude couple on a couch engaged in sex and kissing from 1800 BC.Trustees of the British Museum/University of Copenhagen New research into Ancient Mesopotamia suggests ...

Romantic kissing likely evolved for the first time in a common ancestor of humans and other large apes about 21 million years ago, scientists revealed in a new study. Several animals have so far been ...

For humans, kissing holds major cultural cachet, accompanying confessions of romantic love, religious rituals of reverence and even betrayals, à la The Godfather Part II’s “kiss of death.” New ...

"First kiss beliefs" include idealized beliefs that your first kiss with a new partner should be a magical, transformative moment, sparking intense emotions within. Idealized romantic expectations ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. “The meeting of ...

Kiss Day, celebrated on February 13 each year, is the perfect occasion for lovers to express their affection through one of the most intimate and timeless gestures— a kiss. As part of the Valentine's ...