Normal and Diabetic Flies (IMAGE) University of Maryland Caption A diabetic fly? The fly on the left has normal insulin-like peptides. The fly on the right carries a deletion of insulin-like peptide genes and is small, with symptoms of human diabetes. Credit H. Zhang, C.R. Li and L. Pick 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.