Mussel Shell Breakage (IMAGE) Max Planck Institute of Geoanthropology Caption Muschelschalenbruchmuster am Standort Bennett Slough Culverts. (A) Außen- und (B) Innenflächen jeder Muschelhälfte; (C) Zeichnung der Außenseite einer Muschelschale mit dem typischen Bruchmuster des Seeotters (Abbildung von Neil Smith); (D) gebrochene Muschelschalen in situ. Credit Image (C): Neil Smith; Images (A), (B), & (D): Michael Haslam. Haslam <em>et al</em>. 2019. Wild sea otter mussel pounding leaves archaeological traces. <em>Scientific Reports</em>. Usage Restrictions This image may only be used in the context of reporting on this publication and with appropriate credit information. 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.