For the first time since 1803, two different types of cicadas — one on a 13-year and the other on a 17-year cycle — are expected to co-emerge in more than a dozen U.S. states.
Cicadas: ‘This Is a Big, Big Event’
For the first time since 1803, two different types of cicadas — one on a 13-year and the other on a 17-year cycle — are expected to co-emerge in more than a dozen U.S. states.