(IMAGE) Martin-Luther-Universität Halle-Wittenberg Caption Alexander Bondarenko Credit Uni Halle / Markus Scholz Usage Restrictions Use only for covering the research mentioned in the release License Original 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.