Fig. 9.

Robustness and plasticity of evolvers and regulators. Example evolutionary simulations of two regulators (top; blue and cyan) that had previously evolved under 10 generation periodic changes and were subjected here to 1000 generation periodic changes and two evolvers (bottom; red and orange) that had previously evolved under 1000 generation period changes and were subjected here subjected to 10 generation periodic changes. Continuous and dashed lines are fitness in the actual and alternative environment, respectively, with the difference filled in (grey)