With Light, Without Light (IMAGE) University of California - San Diego Caption This image shows examples of the clusterwink snail H. brasiliana emitting biolumuniescent light (right) and without light. Credit Scripps Institution of 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.