Rock Goby (<i>Gobius paganellus</i>) (IMAGE) University of Exeter Caption The rock goby can change both its color and brightness to match its background in just one minute. Credit Alice Lown 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.