Thur (IMAGE) University of Zurich Caption In the Swiss river Thur, environmental DNA samples from various locations were analyzed in order to make predictions on the biodiversity of the aquatic insects. Credit Elvira Mächler, Chelsea Little, Florian Altermatt, University of Zurich Usage Restrictions None 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.