Zebras (IMAGE) University of California - Davis Caption Research by UC Davis professor Tim Caro showed that zebras have black and white stripes to deter biting flies. Credit Tim Caro/UC Davis Usage Restrictions Provide credit 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.