Conservation Paleobiologist (IMAGE) University of Chicago Caption Susan Kidwell, the William Rainey Harper Professor in Geophysical Sciences at the University of Chicago. Credit Photo courtesy of Susan Kidwell Usage Restrictions This image may be used by news organizations in reports describing the research of Susan Kidwell. 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.