Harding (IMAGE) University of California - Santa Cruz Caption Katie Harding, a UC Santa Cruz graduate student and the paper's first author Credit Courtesy of Jonathan Zehr Usage Restrictions For use only with news coverage of this research 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.