Ellen Mather (IMAGE) Flinders University Caption Flinders University lead author Dr Ellen Mather holding the femur of a Wedge-tailed Eagle (left) and Dynatoaetus gaffae (right) for comparison. Credit Flinders University Usage Restrictions Please credit Flinders University 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.