Image of the gut of the fruit fly (IMAGE) Brown University Caption Pictures taken with a confocal microscope of the gut of drosophila (fruit fly) show enteroendocrine cells that express the NPF neuropeptide. Image courtesy of Marc Tatar. Credit Courtesy of Marc Tatar Usage Restrictions For use only in coverage of this study License Original 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.