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Figure 6


Fig. 6. Linear speed (A) and acceleration (B) profiles of archer fish predictive starts. Filled circles relate to the start shown in Fig. 3 (take-off speed 1.225 m s-1, turning angle 43.6°). The half-open circles relate to a response with lesser take-off speed (0.770 m s-1) but similar turning angle (39.5°). Speed and acceleration data end three frames before actual end of stage 2. This is because after that, the 5-point moving regression method used to take the derivatives causes ambiguities.





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