1_bulk_sampling.jpg (IMAGE) Smithsonian Tropical Research Institute Caption Erin Dillon collecting bulk surface sediment samples from a modern coral reef in Bocas del Toro, Panama. Credit STRI Usage Restrictions Credit: STRI 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.