Movie 1.

Three examples of digitized strike videos, highlighting the movement of the telson and body after receiving a strike. This whole-body movement likely contributes to lower COR values (higher energy dissipation) when measured from freely-interacting animals, as compared to focusing solely on morphology. In each video, colored points show landmarks digitized during experiment and from which displacement data were obtained. Frame rates in each video were 30,000 frames/second, played back at 7 frames/second. The third video shows an example of a glancing blow.