The human brain is a greedy organ. It gulps energy, demands constant upkeep, and somehow grew far larger (relative to body size) than the brains of any other primate. Scientists have always wondered ...

A new study from Northwestern University is reshaping how scientists think about brain evolution. The research suggests that ...

The microorganisms in our gastrointestinal tract-the gut microbiome, can exert a profound influence on the human body, and ...

BUFFALO, N.Y. ­­ ­ ­­— Saliva is a bodily fluid most of us take for granted despite the significant roles it plays: aiding in digestion, maintaining strong teeth and defending against oral disease.

What events led to differences between humans and other primates? What changes throughout evolution underlie such a dramatic shift in how we socialize and process information? Although somewhat ...

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

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