Stingray Cells (IMAGE) University of California - San Diego Caption Cells isolated from stingray gills showing the protein (green) are moving to the cell membrane when activated. Credit Scripps Oceanography/UC San Diego 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.