Shinichiro Enomoto, University of Utah (IMAGE) University of Utah Caption Postdoctoral researcher Shinichiro Enomoto with weevils (black) and plates containing benign (left) and harmful (right) mutants of S. praecaptivus. Credit Colin Dale Usage Restrictions Credit Colin Dale/University of Utah 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.