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 ...

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

Neanderthals are usually seen as brutish and primitive, but research now suggests our ancestors kissed often - and even with ...

Kissing may date back 21.5 million years in early ape ancestors. Researchers studied modern primates to estimate how the ...

When did we start kissing? Research suggests it may have begun as early as 17 million years ago. This finding comes from a ...

AMSTERDAM — Kissing did not begin with star-crossed human lovers but with the primate ancestors of great apes around 20 ...

The first kiss in history probably took place over 16.9 million years ago — long before humans even existed, a new study suggests.

Researchers trace the origins of the first kiss to early primates 20 million years ago, revealing the deep roots of human ...

Kissing is more than just "mouth-to-mouth" touching, and the study doesn't really shed much light on why humans kiss the way ...

Or, as her majesty Faith Hill might say, “This kiss.” And, it turns out, it’s also really old. British scientists say they’ve ...

Learn where orangutans live and eight amazing facts about them, plus WWF’s efforts to protect their habitats in Asia.

The result was striking. Kissing almost certainly existed in the ancestor of today’s large apes, which lived somewhere ...