Double Cicada Brood 2024 Wikipedia. Scientists at the university of connecticut (uconn) have mapped cicada brood activity in the periodical cicada project database, which shows that the double. The event jonathan larson, an extension entomologist at the university of kentucky, is referring to is the simultaneous emergence of two cicada broods that will.
Why are their life cycles so long? They spend 13 or 17 years underground (depending on the brood), and then suddenly emerge in their billions over.