Do Zebra Stripes Confuse Biting Flies? (AUDIO) University of California - Davis Your browser does not support the audio element. Caption There's evidence that zebra stripes deter tsetse flies and other biting flies. But how? UC Davis scientists Ken Britten and Tim Caro tested the idea that stripes break up polarized light that flies may use to navigate. Credit Andy Fell/UC Davis Usage Restrictions None 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.