“firefly boom”! In Michigan in 2018: https://www.michiganradio.org/post/firefly-boom-lighting-michigan-backyards-summer https://www.michiganradio.org/post/firef

“firefly boom”! In Michigan in 2018: https://www.michiganradio.org/post/firefly-boom-lighting-michigan-backyards-summer https://www.michiganradio.org/post/firefly-boom-lighting-mic...