Boxfish Sutured Surface (IMAGE) University of California - San Diego Caption Proposed mechanical advantage of sutured interface: (a) Straight interface with penetration by sharp tooth separating neighboring scutes; (b) Sutured interface with force F having tangential and normal components; (c) Tangential component of force, Fy, pushing opposite sides of teeth against each other in a locking-in mechanism. Credit Jacobs School of Engineering/UC San Diego Usage Restrictions Please credit Jacobs School of Engineering/UC San Diego 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.