Image 1 (IMAGE) Florida Museum of Natural History Caption Scientists studied stone tools, bone flakes and rare elephant remains at a middle Pleistocene site. Their findings shed light on the evolution of giant elephants and humans alike. Credit Illustration by Chen Yu Usage Restrictions Credit must be given to the creator. License CC BY 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.