Fossils discovered in Morocco shed light on our African roots

The oldest Homo sapien fossils, dating from over 300,000 years ago, were found at the Jebel Irhoud northwest of Marrakesh. Our cousins the Neanderthals mostly lived in Europe, while more recent additions to the family, the Denisovans, roamed Asia. This has prompted an enduring mystery: who was the last common ancestor of Homo sapiens and our cousins, before the family tree split off into different branches? This divergence is thought to have occurred between 550,000 and 750,000 years ago. Until now...