Variation Lesson: The Great Jellybean Hunt
The goal of the game is to demonstrate how natural selection can act on populations to “fine tune” traits and characteristics. One specific purpose is to address a Lamarckian misconception of adaptation acquisition, being that organisms “acquire” traits out of “need.” This game reveals how natural selection and other evolutionary forces act on the variation already present to produce the animals we see today and in the fossil record. Jellybeans of five colors are the prey and students with different feeding tools are the predators. The jellybean habitat is a grassy recreational area. After foraging intervals, students will count prey captured, determine less successful predators and study how species may become extinct. Tables based on class data will allow for graphical analysis and interpretation.