Karen Neely, a coral ecologist at Nova Southeastern University, swims past nails placed in an Orbicella...
Karen Neely, a coral ecologist at Nova Southeastern University, swims past nails placed in an Orbicella faveolata (Mountainous Star Coral) to mark the growth of disease on the organism affected by Stony Tissue Loss Disease (SCTLD) on a dive near Key West, Florida, U.S. September 8, 2019. REUTERS/Lucas Jackson