Ancient DNA extraction (IMAGE) University of Bern Caption Ancient DNA extraction in Mainz’s lab. Work done in sterile conditions to avoid contamination from modern DNA. Credit Joachim Burger / JGU 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.