Discover the 25 Most Toxic Things on Earth, from natural venoms to synthetic poisons. Learn what makes them lethal and how ...

Astrocytes, once thought to be mere brain “support cells,” are now revealed to be key players in fear memory. Researchers found they actively help form, recall, and weaken fear responses by ...

The human eye can see with exceptional detail, allowing people to read fine print, recognize faces across the room, and take ...