It's well-known dogs can sense human emotions, but how do they do it? And what are the implications for how we behave around them?

Alzheimer’s disease has long been a diagnosis that arrives only after memory begins to fray, by which time brain damage is ...

Far below the reach of sunlight, at roughly 4,000 m deep on the Pacific seafloor, researchers have stumbled on a form of oxygen that should not exist there at all. The finding, quickly dubbed “dark ...