GIF: Visual fear aversion. (VIDEO) University of Tokyo This video is under embargo. Please login to access this video. Caption Calm flies wouldn’t show a change in behavior in response to a visual object, but fearful flies would run away from it. Credit 2023, Tsuji et al. Usage Restrictions No restrictions. License CC0 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.