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Fig. 9. Upper panel: cross-correlogram relating AFR production with attack counts
are given for (A) a single fish (N=19) and (B) between fish
(N=16) for all trials involving 10 or more AFRs and attacks.
Horizontal line denotes the null distribution. Lower panels: bin-by-bin
statistical analysis of the correlograms. The fraction of individual fish in
which the corresponding bin height is either greater than expected by chance
(P>0.95, black line) or less than expected by chance
(P<0.05, grey line).