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

A new study suggests that many modern health challenges may stem from a deep evolutionary mismatch between our ancient biology and today’s industrialized environments.

The very first kiss likely occurred roughly 21.5 to 16.9 million years ago, before the first appearance of Homo sapiens 300,000 years ago, the study said.

Subtle genomic variations between humans and Neanderthals provide clues to how DNA shapes our facial features.

As our evolution slows and industrialization and technology accelerates, a growing body of research suggests that human ...

A 10-minute journey through Earth's human evolution gives you a quick tour of how we, as humans, came to be. It all started ...

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

A clear walk through human evolution from our earliest hominin ancestors to modern Homo sapiens. This overview highlights key ...

Kissing is more than just “mouth-to-mouth” touching, and the study doesn’t really shed much light on why humans kiss the way they do, said Adriano Reis e Lameira, an evolutionary psychologist and ...