Flies in Flight (video) Case Western Reserve University Share Print E-Mail Loading video... Caption Flies possess specialized sensory organs called halteres that help them detect body rotations during flight. With their halteres removed, they can no longer maintain stability. Credit Alexandra Yarger, Case Western Reserve University Usage Restrictions None 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.