Fig. 8. Trajectories of vector ants released within the test area without a barrier. The ants (N=18) were captured at the feeder and released within a test area devoid of landmarks. During training (see Fig. 1), the ants chose to detour around the left (N=10, red) or the right (N=8, green) end of the barrier. The dashed lines mark the fictive position of the barrier relative to the point of release (
). The trajectories are shown until the ants started to search. 
, fictive position of the nest relative to the point of release.
