Fig. 3. Archer fish respond over a large range of angles between their initial orientation and the take-off direction of the dislodged prey. Distribution of the absolute values of angles (inset) between take-off direction of the prey and the initial orientation of the responding fish. Angles were sampled at 20° intervals (starting at 10°; see Materials and methods) and accumulated in histograms normalized so that the total frequency equalled 1. (A) h=20 cm, N=60 responses; (B) h=40 cm, N=64 responses. Histograms are based on the responses analyzed in Figs 4,5,6.