From Youtube, "See a storm of synchronized fireflies explode in the Highland forests of Mexico. 100% Natural. Zero Special Effects. Filmed like never before so you can feel what it's like to be there without waiting weeks deep in the woods. Once you see it, you'll agree that we must take action to preserve this natural wonder! Follow me on Instagram @Blake
.congdon to find out more. Watch behind the scenes footage to see how we shot this video: blakesfilms.com/firefly "