Question: you have been conducting research on a population of gray...
You have been conducting research on a population of gray squirrels on your campus. Red-tailed hawks on your campus are the main predator for these squirrels. In this population, you found that squirrels with longer legs can run faster and so are less likely to be eaten by hawks and that leg length has increased over time in this population. Which of the following statements best explains the evolution of longer legs in these squirrels?
a. Squirrels with long legs have offspring with long legs
b. All individuals must have long legs
c. Each squirrel’s legs become longer as they run more
d. Squirrels with short legs have offspring with long legs
e. Natural selection cannot act on this population because they do not have a sufficiently long life span