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The phenomenon is called bioluminescence. It's very cool. It's the same reason fireflies, some sea algae, and deep water fish glow in the dark. It requires an enzyme referred to as luciferase. A high energy peroxide bond is broken in the reaction and the energy is released as visible light.

2006-08-19 07:58:33 · answer #1 · answered by Sarah C 2 · 0 0

They contain phosphorescent chemicals.

2006-08-19 14:20:09 · answer #2 · answered by ag_iitkgp 7 · 0 0

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