Map (IMAGE) Max Planck Institute of Geoanthropology Caption Illustrated dispersal routes from the results of the Least Cost Path analysis. The three routes from the "wet" simulations and the single route from the "dry" simulation are presented together in conjunction with palaeoclimatic extents (glaciers and palaeolakes). Credit Nils Vanwezer and Hans Sell Usage Restrictions This image may only be used in the context of reporting on this publication and with appropriate credit information. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.