Rocky Inter-tidal Environment (IMAGE) University of Southern California Caption Mussels live in one of the harshest, most fluctuating environments possible, where conditions can change body temperature 50 degrees Fahrenheit. Credit Andrew Gracey 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.