image: Stratigraphic profile of Chagyrskaya Cave, Russia, from which sediment samples were collected for genetic analyses. This material relates to a paper that appeared in the April 27, 2017, online issue of Science, published by AAAS. The paper, by V. Slon at Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany, and colleagues was titled, 'Neandertal and Denisovan DNA from Pleistocene sediments.' view more
Credit: Richard G. Roberts