Fruit Fly Courtship (IMAGE) Michigan Medicine - University of Michigan Caption Female fruit flies' pheremones reveal how much her body has invested its energy in producing eggs, changing her attractiveness as a potential mate, new research shows. Credit University of Michigan Usage Restrictions Credit University of Michigan 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.