Bull kelp forest (IMAGE) University of California - Santa Cruz Caption In 2019, researchers found a forest of bull kelp growing on a deep reef that had been a sea urchin barren the previous year. Credit Photo by Michael Langhans Usage Restrictions For use only with news coverage of this research 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.