Scientists discovered humans descended from two ancient populations, not one. These groups split 1.5 million years ago.

"Our history is far richer and more complex than we imagined," said human evolutionary geneticist Aylwyn Scally.

Human embryos briefly exhibit traits like tails and gill-like structures, revealing our evolutionary history and deep ...

Scientists have revealed a hidden chapter in human evolution, showing our origins trace back to the interbreeding of two ...

Modern humans descended from not one, but at least two ancestral populations that drifted apart and later reconnected, long before modern humans spread across the globe.

We all trace our origins to a common hominin ... of Cambridge has unveiled a strikingly unconventional pattern in human evolution. Researchers found that the rate of emergence of new species ...

This much of your body is made up of human cells ... Feeling sick all the time while you're trying to nurture a growing baby might seem like a terrible mistake on evolution's part, but what ...

which allowed them to identify gene targets for nearly all HARs, which is a significant advance in the study of human evolution. The discovery adds to the growing understanding of how genetic ...

Charles Darwin's theory states that all organisms alive today evolved from more simple life forms. Two fossils named Ardi and Lucy provide evidence for human evolution. Both were found in Africa.

When evolution skeptics want to attack ... liquid that gave it the convex curvature of the human eye. In fact, eyes corresponding to every stage in this sequence have been found in existing ...

This article examines the fossil evidence of our 6 million year evolution. Darwin's great insight, and the unifying principle of biology today, is that all species ... studies of human and ape ...

Ian Randall is Newsweek's Deputy Science Editor, based in Royston, U.K. His focus is reporting on science and health. He has covered archeology, geology, and physics extensively. Ian joined ...