Modern humans, Neanderthals, and other recent relatives on our human family tree evolved bigger brains much more rapidly than earlier species, a new study of human brain evolution has found.&nbs ...

For oral medications that prevent new HIV infection to be effective, the patient must take certain actions, including ...

Researchers have quantified for the first time the global emissions of a sulfur gas produced by marine life, revealing it ...

Our bodies divest themselves of 60 billion cells every day through a natural process of cell culling and turnover called ...