Fig 7.

Average performance in the first 5’000 generations of evolutions depending on treatment. Average performance in the unconstrained treatment (40 populations) and in the constrained treatment (40 populations) over the first 5’000 generations. In the constrained treatment, senders where forced to move at a fixed velocity, thus preventing the use of signal onset-delay and/or duration by receivers. Dashed lines show the average performance achieved in the two treatments at the end of the experiments (i.e., at generation 25’000).