(IMAGE) Champalimaud Centre for the Unknown Caption Fruit flies placed in a virtual reality world help scientists understand how vision affects locomotion. Credit Alexandre Azinheira, Champalimaud Foundation Usage Restrictions Can only be used with proper credit. 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.