Ancient and Modern Bones (IMAGE) Johns Hopkins Medicine Caption These are cross-sections of an Upper Paleolithic, left, and Early Medieval, right, thigh bone, showing the change in bone shape and reduction in strength in the later individual. Credit Study authors 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.