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NO Helps Make Fireflies Flash

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Science  29 Jun 2001:
Vol. 292, Issue 5526, pp. 2413-2414
DOI: 10.1126/science.292.5526.2413a

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A key step in how fireflies trigger their bursts of light has defied elucidation. Now, neurobiologists have identified that missing link. And much to their surprise, it turns out to depend on nitric oxide--a versatile cell-signaling molecule that our cells use to make blood vessels dilate, they report on page 2486.

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