Mussel Shell Breakage (IMAGE) Max Planck Institute of Geoanthropology Caption Mussel shell breakage patterns at the Bennett Slough Culverts site. (A) Outer and (B) inner faces of each valve; (C) drawing of the exterior of a mussel shell showing the typical sea otter breakage pattern (illustration by Neil Smith); (D) broken mussel shells 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.