Green Sea Urchins (IMAGE) Helmholtz Centre for Ocean Research Kiel (GEOMAR) Caption This shows green sea urchins (Strongylocentrotus droebachiensis) at the lab. Credit Photo: GEOMAR 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.