A new study posits that same-sex sexual behavior developed to help primates in complex social groups ease tension, reduce ...

In most cases, evolution is a pretty slow process, taking hundreds if not thousands of years—but when humans enter the ...

Humans are the only primates that run nearly naked under the sun. Here’s how this biological tradeoff reshaped how our ...

Researchers uncover evidence that the gut microbiome and brain connection can influence brain gene expression and neural ...

A lost chapter in human evolution has been revealed after an analysis of modern DNA found that we come from not one but two ancestral populations—ones that drifted apart and later reconnected long ...