Noelle Lucey wetlab bocas_july2019_6 (IMAGE) Smithsonian Tropical Research Institute Caption Sea urchins (Echinometra lucunter) in the lab at the Smithsonian's Bocas del Toro Research Station in Panama. Researchers discovered that low oxygen conditions seemed to effect urchin behavior more than higher temperatures or low pH (ocean acidification). Credit Credit: Jorge Aleman, STRI Usage Restrictions Credit: STRI 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.