“Hundreds of fossils representing over a dozen species of Ardipithecus, Australopithecus, and Homo had been found in the Afar ...

More than 3.5 billion years ago, the Earth was not the hospitable world we know today. The atmosphere lacked oxygen, the seas ...

A rare fossil discovery in Ethiopia has pushed the known range of Paranthropus hundreds of miles farther north than ever before. The 2.6-million-year-old jaw suggests this ancient relative of humans ...

A rare Homo habilis skeleton from Kenya reveals how early humans moved, climbed, and adapted more than two million years ago.

Chronic time pressure strains mental health, suggesting relief may come from loosening time’s control rather than managing it ...

Treponema pallidum, a microorganism that can cause a deadly sexually transmitted disease in humans, may have a far more ancient lineage than scientists once thought ...

The real revelation, however, came from the men. Men considered a larger penis as an indicator of a rival with both greater ...

A 5500-year-old genome recovered from human skeletal remains in Colombia may give insights into the early evolution of ...

A fossil jaw of a distant human relative was discovered much farther north than previously thought possible, revealing new ...

Our prehistoric human ancestors relied on deliberately modified and sharpened stone tools as early as 3.3 million years ago.