Fig. 4From: Evolution in Lego ®: A Physical Simulation of Adaptation by Natural SelectionFitness as function of generation in a simulation experiment. Experiment 2 is computer-simulated for 100-gene animals over 100 generations. The fitness is normalized (1 is the maximum). The population size is 110, and the dots represent a random subsample of the population to show the variation. The solid line is the average fitnessBack to article page