Color Change in Rock Gobies (IMAGE) University of Exeter Caption This image shows the same three gobies after being on a black background (left images) and a white background (right images). Credit University of Exeter 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.