Thermal Daspleto (IMAGE) University of Missouri-Columbia Caption A graphic thermal image of a T. rex with its dorsotemporal fenestra glowing on the skull. Credit Illustration courtesy of Brian Engh. 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.