Fig. 3. Stage 1 angle (dark circles) and the average measured peak strain between the anterior and posterior axial positions (gray circles) expressed as a function of the minimum distance measured between the head and caudal peduncle (an index of total body curvature, where smaller distances are interpreted as greater overall curvatures) over the course of the escape response. The dashed line (12.3% average strain) corresponds to the arbitrary division used to separate high strain and low strain events.