Primate femora (IMAGE) New York University Caption Microscope images of the cross section of the seven femora (thigh bones) included in this study, identified by age and sex. Credit Image courtesy of Paola Cerrito and Timothy Bromage. Usage Restrictions Use with this study only 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.