"One Hand Clapping" draws from neuroscience, evolution, philosophy and a rich tapestry of cultural references to examine how ...

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

Researchers mapped the evolutionary history across primates, discovering that the behavior was present in a shared ancestor ...

The study defined kissing, in part, as “oral-oral contact with some movement of the lips/mouthparts and no food transfer” ...

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

The study found that unlike other vertebrates where competition generally suppresses speciation after ecological niches are ...

The human genome is made up of 23 pairs of chromosomes, the biological blueprints that make humans … well, human. But it turns out that some of our DNA — about 8% — are the remnants of ancient viruses ...

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

A 146,000-year-old skull recovered near Harbin, China, by scientists decades ago has now been found to belong to the Denisovans, an extinct relation to modern humans who lived in Siberia and East Asia ...

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