Fig. 3.

GMF as a compass cue in desert ants. A novice (C. nodus) leaves the nest entrance (black circle) and performs a learning walk (black solid line). During the longest stopping phase of a pirouette, it looks to the nest entrance (black dotted line). When the horizontal component of the GMF is rotated (e.g., 90°) the home vector of the ant points towards a new, fictive position of the nest entrance (red star). The novice continues its path (red solid line). During the longest stopping phase of a subsequent pirouette, it looks to the fictive nest entrance (red dotted line). From Fleischmann et al. (2018a)