Recent work has revealed some of the many crucial functions of astrocytes, brain cells that were once thought to play primarily supportive roles for neurons. Astrocytes do handle debris around neurons ...

A documentary video of a lone penguin walking inland toward icy mountains has gone viral. Scientists explain what may cause ...

This wildlife feature follows the mule deer from its first on-screen appearance, beginning with its distinctive ears and immediate alert behavior. As the episode moves into antler biology, researchers ...