This worksheet walks students through the idea of evolutionary fitness, using 4 lions as examples. They begin by using current knowledge & ideas about fitness to make a claim about the lions. Next, they discuss each lion (ideally with a partner) to think about the pros & cons of each lion. Thirdly, students read with a purpose to summarize Darwin's ideas on fitness (overproduction, genetic variation, struggle to survive, & differential reproduction). Students then wrap up the assignment by responding to a writing prompt to produce a persuasive essay.
Students will also need access to a textbook (or similar resource) that has information about Darwin's ideas on Evolutionary Fitness for the purposeful reading portion of the activity.