Paleofeces samples (IMAGE) Cell Press Caption This image shows paleofeces samples from Hallstatt salt mines analyzed in this study. Credit Eurac Research/Frank Maixner Usage Restrictions Credit must be given to the creator. Adaptations must be shared under the same terms. License CC BY-SA 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.