Femur and Pelvis (IMAGE) University of Missouri-Columbia Caption These are 1.9 million-year-old pelvis and femur bone fossils of early humans in Kenya reveal that there were more distinctive species of early humans than previously thought. Credit MU News Bureau 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.