Left and right columns illustrate mean relative directions of motion of neighbours as a function of relative group mate locations, as observed in an unbounded and a bounded domain respectively.

In these plots, the focal individual is located at the origin and moving right parallel to the positive x-axis. Arrows point in the mean relative direction of motion of all other individuals relative to the focal individual. Colours represent differing values of R, which describes the focus of the angles in a given bin about the mean.