Genetics Reveal that Reef Corals and Their Algae Live Together but Evolve Independently (2 of 3) (image) Penn State Share Print E-Mail Caption Upon settlement, young elkhorn coral (Acropora palmata) as shown in this image must acquire their algal partner (Symbiodinium fitti) from the environment. The algal partner is a single-celled dinoflagellate. The partnership between the coral host and just one clonal strain of S. fitti persists over the lifetime of the colony. The performance of both partners will dictate how this colony responds to future environmental stress. Credit Iliana B. Baums, Penn State University Usage Restrictions The image credit must be published along with the image. Share Print E-Mail 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.