Fig. 6. Examples of the trajectories of eight ants (four in A and four in B) searching for the nest within a four-cylinder landmark array recorded after releases from four different compass directions. All ants were released from the direction of training after at least 3 days of training. Open circles indicate the positions of landmarks; stars denote the sites of release; the black arrowheads at the edge of the grid point to the fictive position of the nest. Each search trajectory selected by an individual ant is represented by a coloured line.