Coral polyps hosting symbiotic algae (IMAGE) University of California - Riverside Caption Fluorescence image of coral Acropora juvenile polyps hosting the symbiotic algae (Breviolum minutum) that was used in the research paper, shown as red dots. Green color is the endogenous green fluorescence from corals. Credit Robert Jinkerson/Tingting Xiang/UCR Usage Restrictions none 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.