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Thomas Jefferson - 2 it’ll - 2 It’s - 1 “ - 1 ” - 1 Floyd W - 1 Shockley - 1 “ That’s - 1
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Southern - 2 Northern Illinois - 2 Northern Illinois Brood’s - 2 Entomology - 1 Smithsonian National Museum of - 1

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☆ Up to a Trillion Cicadas Are About to Emerge in the U.S.
  + stars: | 2024-04-04 | by ( Aimee Ortiz | ) www.nytimes.com   time to read: 1 min
In a rare occurrence, a trillion cicadas from two different broods are expected to begin appearing in the Midwest and Southeast regions of the United States at the end of April. It’s the first time since 1803 that Brood XIX, or the Great Southern Brood, and Brood XIII, or the Northern Illinois Brood, will appear together in an event known as a dual emergence. Thomas Jefferson was president the last time that the Northern Illinois Brood’s 17-year cycle aligned with the Great Southern Brood’s 13-year period. After this spring, it’ll be another 221 years before the groups, which are geographically adjacent, appear together again. A roughly 16-state area will be center stage for these periodical cicadas, which differ from those that appear annually in smaller numbers.
Persons: It’s, Thomas Jefferson, it’ll Organizations: Southern, Northern Illinois, Northern Illinois Brood’s Locations: Midwest, United States, Northern
☆ The World Hasn’t Seen Cicadas Like This Since 1803
  + stars: | 2024-01-19 | by ( Aimee Ortiz | ) www.nytimes.com   time to read: 1 min
The cicadas are coming — and if you’re in the Midwest or the Southeast, they will be more plentiful than ever. This spring, for the first time since 1803, two cicada groups known as Brood XIX, or the Great Southern Brood, and Brood XIII, or the Northern Illinois Brood, are set to appear at the same time, in what is known as a dual emergence. The last time the Northern Illinois Brood’s 17-year cycle aligned with the Great Southern Brood’s 13-year period, Thomas Jefferson was president. After this spring, it’ll be another 221 years before the broods, which are geographically adjacent, appear together again. “Nobody alive today will see it happen again,” said Floyd W. Shockley, the chair of the Entomology Collections Committee at the Smithsonian National Museum of Natural History.
Persons: Thomas Jefferson, it’ll, “, ”, Floyd W, Shockley, “ That’s Organizations: Southern, Northern Illinois, Northern Illinois Brood’s, Entomology, Smithsonian National Museum of Locations: Midwest, Louisiana, Northern
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