Irina Pugach, Max-Planck-Gesellschaft (IMAGE) Max-Planck-Gesellschaft Caption This shows Max Planck researcher Irina Pugach at work in the laboratory. Credit MPI f. Evolutionary Anthropology Usage Restrictions None 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.