We are providing an unedited version of this manuscript to give early access to its findings. Before final publication, the manuscript will undergo further editing. Please note there may be errors ...

"Ardi," the earliest hominid fossil skeleton ever found, didn't live exclusively in the trees, according to a team of researchers who challenge an important conclusion of a discovery called the "most ...

We're not the first species of ‘human’ to walk the Earth; thousands of years before us there was a rich diversity of ...