Drosophila melanogaster (IMAGE) Technical University of Munich (TUM) Caption Dopamine helps animals like the fly Drosophila melanogaster to classify good and bad (symbolized by black and white) in their decisions. Credit Nicolas Gompel Usage Restrictions Free for use in reporting on TUM, with the copyright noted 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.