Firefly luciferin

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Science and technology

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What Wikipedia says

Firefly luciferin (also known as beetle luciferin) is the luciferin, precursor of the light-emitting compound, used for the firefly (Lampyridae), railroad worm (Phengodidae), starworm (Rhagophthalmidae), and click-beetle (Pyrophorini) bioluminescent systems.

Excerpt from the Wikipedia article “Firefly luciferin”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Auteur inconnu, Public domain, via Wikimedia Commons.