Luminosity-Sensitive L3 Cells (image) Johannes Gutenberg Universitaet Mainz Share Print E-Mail Caption Luminosity-sensitive L3 cells (shown in green) in the brain of a fruit fly. Credit photo/©: Marion Silies Usage Restrictions This image may only be used in connection with the press release "Fruit flies respond to rapid changes in the visual environment", issued by Johannes Gutenberg University Mainz on February 5, 2020. 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.