TEDTalks : Edith Widder: The weird, wonderful world of bioluminescence - Edith Widder (2011)

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In the deep, dark ocean, many sea creatures make their own light for hunting, mating and self-defense. Bioluminescence expert Edith Widder was one of the first to film this glimmering world. At TED2011, she brings some of her glowing friends onstage, and shows more astonishing footage of glowing undersea life.
 
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