Dr Yassine Souilmi (IMAGE) University of Adelaide Caption Lead author Dr Yassine Souilmi Australian Centre for Ancient DNA, School of Biological Sciences, The University of Adelaide Credit The University of Adelaide Usage Restrictions Credit: The University of Adelaide 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.