Extended Data Fig. 9: An exponential fit approximates the boundary of swarm expansion and can be used to define a common spatiotemporal domain for all replicates.

(a), An exponential function is fitted to the space-time location of boundary points (indicated in purple colour) for each data set. Space-time coordinates are then rescaled as described in the Methods section, and the rescaled space-time coordinates are shown in their common non-dimensionalized domain in panel (b).