Fig. 6. Trajectory change with 90° separation between F1 and F2. Trajectories at the end of training to F1 and at different periods after the switch to F2 are shown for two groups of ants for which the direct path to F2 was rotated by 90° from the direct path to F1. (A) Experimental arrangement as in Fig. 1C. (B) Experimental arrangement as in Fig. 1D.