Diseased Coral (IMAGE) Florida Atlantic University Caption A large coral (Siderastrea siderea) colony at Glover’s Atoll (2018) shows dead surfaces covered with boring sponge (Cliona sp.), which bio-erodes the calcium carbonate coral skeleton framework resulting in lost structure and physical complexity all impacting biodiversity Credit A. Tewfik/WCS Usage Restrictions Credit: A. Tewfik/WCS 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.