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Curvature profile comparison of a coasting turn and a fast start using the three-dimensional reconstruction at fixed intervals (blue tick-marks). Curvature profile of fish midline during (a) a coasting turn with no fright stimulus and (b) a fast-start turn. The curvature is normalized through the body length at each time step. The dotted arc marks the beginning and the end of the turn. The time in milliseconds denotes the duration of the turn. (Online version in colour.)
