Forty-year-old lunar samples contain trace amounts of water.
Neuroscientists have produced the first detailed "wiring diagram" of the human cerebral cortex.
When—and where—did human imagination first emerge?
Facial expressions may do more than show feelings. They may have evolved as survival instincts.
When forests vanish, seed-spreading animals can come to the rescue.
When one link in Yosemite’s food web falters, the effects cascade.
How does our brain change when we spontaneously create music?
Clearing of Myanmar's lush mangrove forests worsened the damage from Cyclone Nargis.
A new biological rhythm reflects an organism's pace of life.
Urban and rural dwellers express genes differently.