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. 2019 Aug 29;9:12575. doi: 10.1038/s41598-019-49075-3

Figure 6.

Figure 6

We use prepared initial conditions as shown, so that the population cannot evolve into a homogeneous absorbing state during the first period of τ even under the most adverse conditions. For this to hold, the linear size of each square should be more than four times larger than τ. Blue color depicts cooperators (si = C), while the red color depicts defectors (si = D). Both strategies have equal occupance of the population at the start of evolution.