Lead author (IMAGE) University of Massachusetts Amherst Caption Colleen Chase, a doctoral student in Katie Potter's lab, is conducting this research as part of her doctoral dissertation. Credit UMass Amherst Usage Restrictions None License Original 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.