Our ancient primate relatives—including Neanderthals—may have enjoyed a nice peck on the lips. But researchers still don’t ...

Scientists trace the origins of human kissing back over 20 million years to ancient apes who first showed gentle ...

Scientists have traced kissing back to early primates, suggesting it began long before humans evolved. Their analysis points ...

Researchers studying animal behaviour say mouth-to-mouth kissing likely appeared in the common ancestor of humans and great apes more than 21 million years ago.

Scientists suggest kissing is much older than humans. Evidence points to ancient primates sharing affectionate mouth-to-mouth ...

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

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 ...

A groundbreaking study reveals kissing may have evolved 16–21 million years ago in ape ancestors. Humans, Neanderthals, and ...

Researchers analysed 10,000 possible primate phylogenies and reached the stunning conclusion that kissing likely originated ...

Kissing stretches back roughly 21 million years, to the shared ancestor of humans and other large apes, according to the ...

Learn how scientists traced kissing back 21 million years using primate behavior, evolutionary modeling, and clues from ...

Scientists have demonstrated that boys (well, men) really do have cooties (a simplified term for bacteria) that can spread to girls (OK, women) by kissing them. In fact, a 10-second “intimate kiss” ...