English: 1=Visualization of the z-movements of all selected agents by stereo tracking during a single wave episode. Part of the experimental Giant honeybee nest (cf. Additional File 1, Movie S1, Additional File 6, Movie S5 and Additional File 12, Movie S9). The left camera image displays the wave episode w2 as shown in Additional File 2, Movie S2 (cf. Figure 6, 7 and 8). Matched and triangulated agents were marked with rounded rectangles showing the identification number. The colours used for coding the z-position refer to 14 steps of towards-comb direction (blue shades from white to dark blue) and off-comb direction (red shades from white to dark red). This film shows the positional information for all 505 agents (cf. Figure 6ab). Note that the waves cause residual motions of the curtain away from the comb for two seconds (as displayed in Figure 6e for agent 58). Numbers refer to frame and time (in ms) information (0.1 MB, MPG).