Graphic (image) University of Illinois at Urbana-Champaign Share Print E-Mail Caption When they share habitat with rainbow darters, male orangethroat darters learn to recognize their own and other species. They ignore other fish that look even slightly different from themselves, a behavior that appears to drive the evolution of their own color patterns. Credit Graphic by Rachel Moran Usage Restrictions Give credit: Graphic by Rachel Moran Share Print E-Mail 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.