As people age, neurons have to yell at the muscles to whip them into action, according to a small new study.

A tiny visual window only lets us see 8 to 10 letters at a time, new research shows.

The brain learns fears first-hand or by watching others? emotional responses in similar ways, a new study finds.

An ancient arboreal lizard coasted through the air on a wing-like membrane stretched across elongated ribs, a new fossil reveals.

Lifting the ban on taxpayer funding of research on new stem cells would better serve both science and the nation, the chief of the National Institutes of Health told lawmakers Monday.

Plant biologists have reported a new understanding of how genes work in rice.