Herto skulls sit between primitive Bodo and Kabwe skulls and fully modern humans. Skulls dated intermediate chronologically and anatomically. Modern human morphology emerged in Africa over 115,000 years ago. Evidence from Herto and other sites kills Multiregional model. Herto strongly backs Out-of-Africa model where Africans replaced others. Skulls found in Middle Awash, Ethiopia. Authors conclude modern humans arose in Africa long before Neanderthals vanished. Finds seen as setback for worldwide evolution model. First completely modern skulls appear around 115,000 years ago. Herto skulls represent Pleistocene Homo sapiens.