Patricka Williams-Simon (IMAGE) University of Missouri-Columbia Caption Patricka Williams-Simon, a doctoral fellow in biological sciences who led the study, worked with over 40,000 individual fruit flies to study their abilities to learn and remember. Credit University of Missouri 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.