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

A new study that examines how kissing evolved suggests that ape ancestors and early humans like Neanderthals probably locked lips with their friends and sexual partners. The behavior may date back 21 ...

A new study released on Wednesday found that humanity's first kiss occurred roughly 21 million years ago, predating humans.

Humans do it, monkeys do it, even polar bears do it. And now researchers have reconstructed the evolutionary origins of ...

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

Researchers wanted to examine when kissing began, given that from an evolutionary standpoint it has no obvious survival benefit, and could spread disease ...

Evolutionary biologists don’t know why we kiss — but new research suggests kissing evolved long before humans existed.

Kissing is something of a mystery, being "only documented in 46 percent of human cultures," noted psychologist Catherine ...

Wednesday.Researchers from Oxford University and the Florida Institute of Technology wanted to examine when kissing began, given that from an evolutionary standpoint it has no obvious survival benefit ...