Graphical summary (IMAGE) Graz University of Technology Caption Graphical summary of the main findings of the research work. Credit Image: Matthias Niethammer - TU Darmstadt Usage Restrictions No restrictions. License CC0 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.