Close up of a blue mussel shell (IMAGE) American Museum of Natural History Caption The blue, or common, mussel (Mytilus edulis) Credit Daniel Kim/ ©AMNH Usage Restrictions Can be used with appropriate credit 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.