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 ...

Unpack the history of the New Year’s Eve kiss tradition—and learn from a relationship expert about how to make your night ...

Kissing may feel like a very human habit, but new research suggests it has much deeper roots. A team of scientists says the behavior likely began more than 20 million years ago, long before modern ...