Fig. 5.

Consensus decision-making in simulations of animal groups follow the same geometrical principles. Results for two- (A) and three-choice (B) decision-making in a model of animal collectives. The density plots show trajectories adopted by the centroid of the animal group for 500 replicate simulations where the groups do not split. The axes represent x and y coordinates in Euclidean space. The black lines show a piecewise phase transition function fit to the trajectories. For the three-choice case (B), the dashed line is the bisector of the angle subtended by the center target and the corresponding side target on the first bifurcation point. SI Appendix, Table S2 shows the parameters used.