Mussel Beds (IMAGE) Max-Planck-Gesellschaft Caption The mussel beds at hydrothermal vents form a teeming expanse that contains an estimated half a million mussels. Credit Marum Usage Restrictions None 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.