Trillions of Periodical Cicadas Prepare to Emerge Across the U.S.

This rare phenomenon, involving Broods XIII and XIX, marks the first simultaneous emergence in over two centuries.

Two major cicada broods, XIX and XIII, are set to emerge together in a rare event not seen since 1803, affecting 17 states across the Midwest and Southeast.
The cicadas will be above ground for a few weeks to mate and die, with new offspring burrowing underground for another 13 or 17 years.
Scientists highlight the ecological impacts of cicada emergences, such as influencing oak tree masting and subsequent wildlife population changes.
Public interest and scientific studies are peaking as communities prepare to experience the loud mating calls of the cicadas, often mistaken for sirens.
Climate change may be altering the cicadas' life cycles, potentially shortening their 17-year cycle to 13 years due to warmer conditions and longer growing seasons.