Rainforest near Site of Batadomba-lena (IMAGE) University of Oxford Caption This image shows the rainforest near site of Batadomba-lena, where the oldest human teeth (c. 20,000 years old) used in the study were excavated. Credit Patrick Roberts Usage Restrictions To be used with the research story. 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.