Fig. 8. Return paths of subject 1 in experiment II. Only clockwise data are presented. Before the trials, the arena has been turned 135° clockwise. The filled circle represents the rotated position of the nest hole, the small black dot represents point P1, and the small open circle represents the standard location of the nest hole. The large open circle encompasses the starting point of the return trips. The return paths of subject 1 (N=11–14) are represented by a continuous line with an arrow and occasionally by a dashed line. The bottom graph illustrates a return path through trial-and-error exploration in a clockwise baseline trial by subject 2.