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A closer look at cell sorting and engulfment. a How median RMS angle error (see text) changes with dimensionless time (Brodland et al. 2006). b The average absolute value of edge curvature normalized to a circle of the same area as the average cell. c The total length of the yellow–green boundary normalized to its initial length. d Displacement (see text for details) normalized to cell diameter. e The geometries of the aggregates corresponding to the Roman numerals on the graphs
