Joachim L. Schultze and Marc Beyer (image) University of Bonn Share Print E-Mail Caption Joachim L. Schultze and Marc Beyer are from LIMES Institute of University of Bonn. Credit (c) Photo: Barbara Frommann/Uni Bonn Usage Restrictions This photo may be used with the press release. Share Print E-Mail 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.