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 ...

Earth's first large land organisms—tree trunk-like beings that stood up to 26 feet tall—weren't early fungi but, rather, ...

The world’s oldest surviving rock art is a faded outline of a hand on an Indonesian cave wall, left 67,800 years ago.

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

A partial skeleton dating back more than two million years is the most complete yet of Homo habilis, one of the earliest ...

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