Applications 61. a. Suppose there are 12-year cicadas and that cicadas have predators
with 2-year cycles. How often would 12-year cicadas face their
predators? Would life be better for 13-year cicadas than for
12-year cicadas? Explain.
b. Suppose that 12-year and 13-year cicadas have predators with both 2-year
and 3-year cycles. Suppose that both kinds of cicadas and both kinds of
predators came up this year. When would the 12-year cicadas again have
to face both kinds of predators at the same time? When would the 13-year
cicadas face both? Which type of cicada do you think is better off?