Fig. 1. Manipulated hair plates. (A) Schematic drawing of a Cataglyphis worker ant, lateral view. The positions of the manipulated hair plates are indicated (red rectangles); (a) neck joint, (b) alitrunk–petiole joint, (c) petiole–gaster joint. Drawing adapted from (Wehner, 1983). (B) Scanning electron micrograph (SEM) of the petiole–gaster joint; ventral view. Hair plates are in the centre of the image, not manipulated. (C) SEM of the petiole–gaster joint, ventral view; the hair plates had been shaved with a razor splinter (one of the experimental animals that contributed to the data in Fig. 4B).