Sticklebacks (IMAGE) University of Bristol Caption These are sticklebacks which were used in the research. Credit University of Bristol Usage Restrictions The image is for single-use only, should be credited and should not be archived 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.