stLouISTBillions of cicadas will buzz this spring as two broods emerge at the same time. These broods last emerged together in 1803 and won’t appear together again for 221 years.
That means that your grandchildren’s great-great-great grandchildren likely will be the next group to experience the dual emergence of these cicada broods that appear in 13- and 17-year life cycles, says University of Missouri Extension specialist Tamra Reall.
https://extension.missouri.edu/news/billions-of-cicadas-bring-buzzy-magic-to-missouri-in-2024
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