The rock pocket mouse is a living example of Darwin’s process of natural selection. Not only is evolution happening right now everywhere around natural selection worksheet pdf, but adaptive changes can occur in a population with remarkable speed. This speed is essential if you’re a desert mouse living in an environment where a volcanic eruption can reverse selective pressure in nearly an instant.
Michael Nachman, whose work in the field and in the lab has quantified the selective pressure of predators and identified the genes involved in adaptation. In a complete story, from ecosystem to molecules, pocket mice show us how random changes in the genome can take many paths to the same adaptation—a colored coat that hides them from predators. This series of five short films features unforgettable examples of the evolutionary process in action. After showing the 10-minute film, I have students create an infographic, a summary, or discussion board post so that I can assess their understanding of the content. In under 30 minutes, I can elicit students’ understanding of the term ‘adaptation,’ reveal their misconceptions, get them excited, and level the playing field on their basic understanding of evolution.
I use this in both my high school and college courses. Themes: 1, 3 Topics: II. A data collection and analysis lesson that examines selection for coat color in pocket mouse populations on different color substrates over time. An activity in which students analyze amino acid data and draw conclusions about the evolution of coat color phenotypes in different rock pocket mouse populations. A lesson that uses real rock pocket mouse data collected by Dr.