Drosophila melanogaster mating (IMAGE) University of Zurich Caption The fruit fly Drosophila melanogaster is a common model organism for studying sexual selection and evolution. Credit Stefan Lüpold, UZH Usage Restrictions Credit must be given to the creator. License CC BY 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.