Coring SUE's Femur (IMAGE) Field Museum Caption Paleontologist Tom Cullen cutting into SUE the T. rex's thigh bone to learn how T. rex grew. Credit © David Evans Usage Restrictions © David Evans 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.