Neanderthals at El Sidrón (IMAGE) Spanish National Research Council (CSIC) Caption Neanderthals at El Sidrón ate a diet of wild mushrooms, pine nuts and moss. Credit Andres Diaz/CSIC Communication Usage Restrictions The image may only be used with appropriate credit. 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.