Fruit Fly on a Ball (image) Johannes Gutenberg Universitaet Mainz Share Print E-Mail Caption A fruit fly walking on an air-cushioned ball during a behavioral experiment. Credit photo/©: Madhura Ketkar, Silies group 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.