A hidden force let humans smash a barrier that had trapped our ancestors for millions of years.

A reconstruction of East Africa's environment 1.75 million years ago suggests wildfires spiked during wetter times, which may ...

New research suggests that no matter what we eventually determine the last common ancestor of humans and chimpanzees to be, we'll learn it was a primate that climbed trees.

Microglia are the brain’s most abundant immune cells. They protect against invading threats, remove damaged neurons and help shape neural circuits as the brain develops. Scientists at Columbia’s ...

With four launches and nine spacewalks under his belt, Fincke leaves NASA as the fourth-most-flown astronaut at the space agency. NASA astronaut Chris Williams and two Russian cosmonauts returned to ...

Human brain evolution may owe as much to the consumption of fruit and honey as to meat, according to a new Analytical Review. Most people cut sugar first when they decide to improve their diet. The ...