Confirming this, we found a highly significant interaction between group polarization and arrival order in the time taken to reach the stimulus (LMM: estimate = −0.026 ± 0.0032, Kenward–Roger F-test: F 1,1998 = 67.9, P = 3.1 × 10 −16 , Supplementary Table 6 ); in other words, the effect of polarization was dependent on the arrival order.
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Information can explain the dynamics of group order in animal collective behaviour.
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