Fig. 9. Example of an approach path in which the fish did not hold a constant speed, but rather accelerated till the point of catch. (A) Path of falling fly (open circles, calculated projection onto the plane of the water surface) and of responding fish (filled dot indicates the head) sampled every 20 ms. Each sample is shown. Arrangement of panels A-C and the ordinate scale in B and C are as in Fig. 8. In contrast to speed (B), the bearing of the fish's movement (C) is kept rather constant.