<i>Drosophila</i> Evolution (IMAGE) University of Rochester Caption John Paul Masly used fruit flies to confirm that a 70-year-old theory about speciation is correct and acting in nature. Credit Univeristy of Rochester 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.