Drosophila Brain (IMAGE) University of Missouri-Columbia Caption This depth-encoded image shows serotonin clusters in the brain of the drosophila, a type of fruit fly. Credit University of Missouri 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.