Two fossils discovered in Kenya cast doubt on theories of the early evolution of the genus Homo. They show that the species H. habilis and H. erectus - previously thought to have evolved one after the other - actually lived side-by-side in eastern Africa for almost half a million years.
Read the news story or the paper by Spoor et al. in this week's Nature. The image shows Fredrick Manthi with his discovery, the Homo erectus skull
Read the news story or the paper by Spoor et al. in this week's Nature. The image shows Fredrick Manthi with his discovery, the Homo erectus skull