Historic Dual Emergence of Cicada Broods in the U.S. Marks First Event in Over Two Centuries


The United States is currently experiencing a significant natural phenomenon with the emergence of two major cicada broods simultaneously for the first time in over 200 years. Known as periodical cicadas, these insects are part of the genus Magicicada and are recognized for their distinctive red eyes and extraordinarily loud mating calls. Despite their intimidating appearance and sound, they are largely harmless to humans, not biting or transmitting diseases, and pose no significant threat to ecosystems. The phenomenon involves billions of cicadas emerging from the ground, where they have spent many years as nymphs feeding on plant roots, to mate and lay eggs before dying. This rare event is a result of the unique 17-year and 13-year life cycles of the two broods overlapping, an occurrence that only happens every 221 years.
  • The United States witnesses the simultaneous emergence of two major cicada broods for the first time in over two centuries.
  • Periodical cicadas, known as Magicicada, emerge in vast numbers, producing sounds as loud as lawn mowers.
  • Despite their daunting appearance and noise, cicadas do not bite, transmit diseases, or significantly harm ecosystems.
  • The cicadas spend most of their life underground as nymphs, emerging after 17 or 13 years to mate and die shortly after laying eggs.
  • This event allows up to a trillion cicadas to appear, with the next simultaneous emergence of these broods not expected until 2245.
  • Experts suggest minimal human intervention, recommending earplugs for the noise and mesh netting to protect young trees or shrubs if necessary.
  • Cicadas are edible and have been used in dishes prepared by restaurants for outreach events.
  • A mind-controlling fungus affects a small percentage of cicadas, altering their behavior in bizarre ways.
  • The loud mating calls are produced by males, who have evolved body structures that act like musical instruments to attract females.
  • Despite historical misconceptions, cicadas are not harmful like locusts, which can damage crops.

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