Human and Fruit Fly Brain Comparison (IMAGE) University of Sheffield - Faculty of Engineering Caption This is a comparison diagram showing the difference in size between human and fruit fly brains. Credit Louise Crosby/The University of Sheffield 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.