17 Year Cicadas...
After living 17 years in the ground, a s... ...synch with it. 17 year and 13 year broods co-emerge every 221 years. Cicada Broods usually don’t overlap geographically, and i... ...when they emerge in the same year. The next time Brood II...
https://www.neatorama.com/2013/04/10/17-Year-Cicadas/
