Tropical Fish (IMAGE) University of New South Wales Caption A school of tropical plant-eating fish including various species that are shifting their distribution towards temperate waters. Credit Credit: Adriana Verges Usage Restrictions In association with article about the research 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.