Ngu Hao 2 tooth (IMAGE) Flinders University Caption A close up of the tooth from a ‘birds-eye’ viewpoint. Credit Fabrice Demeter (University of Copenhagen/CNRS Paris) Usage Restrictions Credit: Fabrice Demeter (University of Copenhagen/CNRS Paris) 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.