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Annual cicadas emerge around the world each year, but periodical cicadas are found only in eastern North America.—Chad Murphy, The Enquirer, 2 July 2025 This spring, residents can expect to see cicadas from Brood XIV, or periodical cicadas that emerge every 17 years.—Katie Wiseman, Louisville Courier Journal, 5 June 2025 Two types of cicadas commonly exist in the Eastern United States: annual cicadas, which emerge every year, and periodical cicadas, which emerge every 13 or 17 years, according to the Environmental Protection Agency (EPA).—Khloe Quill, FOXNews.com, 29 May 2025 Are periodical cicadas dangerous to humans or pets?—Evan Moore, Charlotte Observer, 12 Mar. 2025 See All Example Sentences for periodical cicada
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