This handout picture taken on June 14, 2015 and obtained from the University of Oxford/Max Planck Institute on August 22, 2018 shows a bone fragment of ‘Denisova 11’, evidence of interbreeding of a Neanderthal and a Denisovan, found in 2012 by Russian archaeologists at Denisova Cave in the Altai Mountains of Siberia.

The Denisovan is a distinct species of primitive human that roamed the Eurasian continent 50,000 years ago. On August 22, 2018 scientists reported in the journal Nature that they have found evidence of a direct, first-generation offspring of interbreeding between different hominin, or early human groups – the mother a Neanderthal, the father a Denisovan. / AFP PHOTO / UNIVERSITY OF OXFORD/Max Planck Institute / Ian Cartwright / RESTRICTED TO EDITORIAL USE – MANDATORY CREDIT “AFP PHOTO / UNIVERSITY OF OXFORD / MAX PLANCK INSTITUTE / IAN R. CARTWRIGHT” – NO MARKETING NO ADVERTISING CAMPAIGNS – DISTRIBUTED AS A SERVICE TO CLIENTS