Fireflies Love to Synchronise Their Flashing Lights. Now, We Finally Know How – ScienceAlert

Every year, for just two short weeks in June, the forests in the southeast US host an incredible phenomenon. Swarms of thousands of male fireflies take wing into the twilight, their abdomens brilliantly flashing in a breathtaking, synchronised mating display.
It’s as mysterious as it is beautiful. For at least centuries, humans across the world have wondered how these beetles coordinate their dance of light. Explanations have ranged from the wind exposing the glowing abdomens, to sheer coincide…

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