This time next year, certain parts of the country will experience something so unique it hasn't occurred since 1803: The emergence of periodical 13-year and 17-year cicadas will coincide.But Chicago might be able to welcome some of these cicadas as early as this Memorial Day weekend."They come up together like this once every 221 years," said Gene Kritsky, dean of behavioral and natural sciences at Mount St.
#people #back #years #united-states #specifically #climate-change #distribution #historically #temperatures #global-warming
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