3-D Data (IMAGE) University of Vienna Caption With the use of 3-D data, the authors identified a relationship between the shape of the pelvis, the body size and head circumference. Credit Copyright: <i>PNAS</i> Usage Restrictions The image may only be used with appropriate caption or credit. 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.