Starlet Sea Anemone (IMAGE) University of Florida Caption Study scientists examined the genes of the starlet sea anemone (Nematostella vectensis) pictured here. Sea anemones are related to corals and jellyfish, and are composed of an outer skin armed with stinging cells (cnidocytes) and a tube shaped gut, with nothing in the middle. Credit Photo by Eric Röttinger Usage Restrictions None 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.