Figure 6
From: Early evolution of evolutionary thinking: teaching biological evolution in elementary schools
Main steps of the activity about genetic drift. (A) Randomly spread the same number of butterflies per color on the habitat. (B) Place the road and exclude the butterflies that died during its construction; note that there are now two populations and ask students to write their hypotheses about what could happen to those two populations over time. (C) Simulate random survival and matting. (D) Discuss changes in color frequency in each population.