Energy/Environment Brood II: After 17 years, billions of eastern US cicadas rise again

After 17 years out of sight and under foot, billions of noisy, bulge-eyed Brood II cicadas are crawling out of the ground in the eastern US to mate, hatch offspring, and start the cycle anew.

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Chris Simon / University of Connecticut / AP / File

If you live on the East Coast and enjoy a walk in the woods or a tree-filled park, for the past 17 years you almost certainly have been walking over buried, juvenile cicadas, one of the most remarkable – and annoying – insects on the planet.