New remains found in a Moroccan mine could radically revise the current idea that humans originated in East Africa some 200,000 years ago. Jean-Jacques Hublin of the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany, and colleagues analysed bones of at least five humans found at Jebel Irhoud, a barite mine 100 km west of Marrakesh. Sharpened flint tools, gazelle bones and lumps of charcoal were also found. These are the oldest known bones of modern humans, with an average age determined from thermoluminescent dating of 315±34 thousand years, and the ages determined are also consistent with faunal and microfaunal assemblages. This pushes back the origin of humans by an amazing 100,000 years, while also suggesting new geographical origins.