When the brain is stimulated, blood flow increases. For 30 years, functional magnetic resonance imaging (fMRI), one of the ...

In the complex circuitry of the brain, a fatty substance known as myelin plays a vital role in insulating neural wiring. It ...

Researchers discovered lymph node-like immune hubs inside skull bone marrow that appear to act as rapid-response centers for ...

A tiny head-mounted microscope lets researchers watch and activate individual brain cells while mice move freely.

Learn more about the cloned mouse that followed Dolly the sheep, and why cloning is still a taboo subject ...

Whether in a deep burrow under frozen winter ground or aboard a far-future interplanetary spaceship, hibernation has long mesmerized sci-fi enthusiasts and nature lovers alike. But exactly how animals ...