First author Joshua Mills (IMAGE) Max Planck Institute for Marine Microbiology Caption First author Joshua Mills, who carried out the study as part of his PhD-thesis, in the lab at the Max Planck Institute for Marine Microbiology in Bremen. Credit M. Müller/Max Planck Institute for Marine Microbiology Usage Restrictions Only to be used in the context of this publication and citing the correct copyright. 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.