Fruit Fly Tether (IMAGE) University of Washington Caption A fruit fly suspended in a magnetic field alters its flight path depending on cues it receives from light polarization. Credit Peter Weir Usage Restrictions News use only. License Licensed 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.