How far back in evolutionary history does kissing go? Through phylogenetic analysis, an international team of scientists ...

On an expedition in the Awash Valley in Ethiopia, two anthropologists uncovered the bones of a 3.2 million-year-old human ...

A new study from Oxford University shows that humans and Neanderthals most likely kissed each other back in the distant past.

"A comparative approach to the evolution of kissing," was published by Evolution and Human Behavior on Nov. 19 ...

Fossils newly discovered in Ethiopia indicate that previously unidentified foot bones belong to the ancient human relative ...

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

Scientists linked a mystery fossil foot to a tree-climbing human ancestor that likely lived alongside Lucy's species 3.4 ...

Emily Kwong and Regina Barber of NPR's Short Wave podcast talk about the evolutionary history of kissing, how moss spores fare in space, and new clues about the collision that created the moon.

For decades, anthropologists have wondered whether kissing is an evolutionary thing or a unique cultural quirk we humans ...

One of the biggest mysteries in human evolution has just been solved. In 2010, a groundbreaking genetic analysis revealed that east Asia was once home to a previously unknown group of enigmatic ...

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