image: Sampling of erratic boulders, which were deposited by a glacier on the central Sanetti Plateau in the Bale Mountains. Consequently, the rock samples were analyzed and dated to reconstruct the time of the respective glacier advance. This material relates to a paper that appeared in the August 9, 2019, issue of Science, published by AAAS. The paper, by G. Ossendorf at University of Cologne in Cologne, Germany, and colleagues was titled, "Middle Stone Age foragers resided in high elevations of the glaciated Bale Mountains, Ethiopia." view more
Credit: H. Veit