Kissing feels instinctive and intimate, yet scientists now argue it is a surprisingly recent and uneven addition to human ...

Scarlett Johansson and her Jurassic World Rebirth co-star Jonathan Bailey made waves last week when they kissed on the red carpet. Seemingly delighted to see her colleague at the film premiere in New ...

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

In Western cultures, we mark the beginning of romantic entanglement by touching lips. Few actions are as fraught with anxiety and symbolism as that first kiss—and it’s no exaggeration to say that some ...

Kissing is not a universal expression of romantic love, it turns out. Kissing is considered a sign of sexual attraction in less than half of the world's societies, according to a recent study. The ...

A kiss is one of the most universal gestures in the world. It’s a wordless way to show affection that transcends language, ...