Hydrothermal Vent Crab (IMAGE) Max-Planck-Gesellschaft Caption The hydrothermal vent crab Segonzacia is on a mound that is covered with white bacteria and mineral precipitates. Credit MARUM Usage Restrictions This image may only be used or reproduced for editorial purposes and in connection with scientific articles on our press material, in which case such usage or reproduction is free of charge and requires no permission. Any other use, in particular for commercial purposes, requires prior permission of the author or photographer. 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.