Drosophila Flies Mating (image) University of Oxford Share Print E-Mail Caption These are mating Drosophila flies. The Oxford University study found that flies living with their brothers cause less harm to females during courting and mating than those living with unrelated flies. Credit Amy Xinyang Hong & Cedric Tan 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.