Normally, periodic cicadas spend their lives in complete darkness underground, sucking the fluid out of the roots of trees and shrubs. At the end of their life, they emerge, breed, and almost instantly die, completing a lifecycle that humans have studied for centuries.

In the process, however, they annoy millions of people with their constant chirping and, of course, the piles of dead cicada bodies on the ground. While some areas may see no cicadas at all, others in the past have seen millions of cicadas in a single acre. (Listen to the cicada’s love song.)

"It can be like raking leaves in the fall, except instead of leaves, it’s dead cicada bodies," said Dan Mozgai, a cicada researcher who