How do fireflies create light?

Dig into the science of how and why fireflies glow, and how their bioluminescent signals differ between males and females.

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The first firefly is thought to have lived over 100 million years ago, illuminating the night with a glowing green light. And today, there are around 2,000 firefly species, found all over the world, from forests and grasslands to marshes and deserts. So, why do these insects glow? Emily A. Geest digs into the bioluminescent signals of fireflies.

Lesson by Emily A. Gees