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Bioluminescence / catalano82, Flickr

Image of a wave in Manasquan, NJ, showing the presence of bioluminescent organisms.

Courtesy catalano82 / Flickr

Bioluminescence is a chemical reaction in an organism that produces light (more information and description of chemistry). The light is usually a bluish color.

Unlike most of our traditional light sources, bioluminescence is considered a "cold light" - little heat is emitted during this process.

Marine organisms capable of bioluminescence include jellyfish, cephalopods, dinoflagellates and some fish.

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