Fig. 8. Two examples each of search trajectories of ants displaced from F9.5 to either a distant football field (A,B) or the roof of the building attached to the terrace (C,D). The ants were always released at the centre of the test area (the crossing point of the two heavy black lines). Walking time recorded: (A) 8min 22s, (B) 8min, (C) 7min 40s and (D) 6min 47s.