Silliman Coral Compared (IMAGE) Duke University Caption Side by side images compare a healthy brain coral at left, and one that has experienced 100 percent bleaching from the combined stresses of warm water and predators. Credit Duke University 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.