HumansWho is Ancestor X? The biggest mystery in human evolution The search for the direct ancestor of humans, Neanderthals and Denisovans has been protracted and puzzling. Now, fresh clues are adding a surprising twist to the tale Features
HumansHow fossil footprints are revealing the joy and fear of Stone Age life A new wave of archaeological investigations is reconstructing intimate details of our ancestors' lives from fossilised footprints. They give us glimpses of everything from parent-child relationships to the thrill of a giant sloth hunt Features