Fig. 3

Percentage of children who received (a) the static storybook intervention (N = 16) and the (b) animated storybook intervention (N = 17) classified into the five levels of natural selection understanding for each assessment. Level 1 = no isolated facts; Level 2 = isolated facts but no natural selection understanding; Level 3 = foundation for natural selection understanding; Level 4 = natural selection understanding in one generation; Level 5 = natural selection understanding for multiple generations