A modern understanding of the theory of evolution revolves around the selection of certain types within a population that over long time periods eventually leads to change of the species. This descent with modification is modeled with this activity, and leads to a subsequent lesson that has students reading about research into examples of speciation.
Amacher, Jessica; Anjur, Sowmya; Dosch, Donald; O'Leary-Driscoll, Sarah; and Randall, Crystal, "Evolution - #6: Selection simulation" (2019). Unit 1: Evolution. 7.