sea urchin broll clip 1 (VIDEO) University of South Florida This video is under embargo. Please login to access this video. Caption Scientists at the University of South Florida study sea urchins to learn the source of a mass die-off in 2022. Credit University of South Florida Usage Restrictions NA 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.