At the end of their lives, all of the cicadas within a group rise up from the ground at the same time, flying around in a frenzy as they molt before dying and dropping to the ground. "Periodical ...

After six to 10 weeks, young cicada nymphs hatch from their eggs and dig ... developmental period in these underground burrows before molting their shells and surfacing as adults to mate and ...

Most times when 13- and 17-year cicadas co-emerge ... After all, it takes a few days for newly emerged nymphs to molt and ...