Pillar Coral, Close-Up (IMAGE) BMC (BioMed Central) Caption Here is a pillar coral close-up, showing tentacles. Credit Kristen Marhaver Usage Restrictions Must be credited 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.