Martin Engqvist (IMAGE) Chalmers University of Technology Caption Assistant Professor, Department of Biology and Biological Engineering, Chalmers University of Technology, Sweden. Image: Martina Butorac/Chalmers Credit Image: Martina Butorac/Chalmers Usage Restrictions For editorial use only. 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.