Fig. 7. Routes performed from novel starting points. (A) Examples of routes with ants started at positions D1 and D2 rather than from their usual start position at T. (B) Routes with ants started at D3. (C) Diagram to show the angular difference between the direction of the second segment and the direction from the turn to F2 (the angle in Fig. 1) with the trajectory either shifted as though the ant had started at T or with no shift of the trajectory. (D) For each trial with a turn, with no shift is plotted against with shift. This plot pools data from ants started at D1 and D2.