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Sharks reign aglow

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ALAN SHEPHERD [email protected]

The notoriety of “Shark Week” may be getting a flashy new upgrade, thanks to the phenomenon of glowing sharks. Certain shark species have been found to biofluoresce, illuminating the deep blue water in their vicinity with a light, bright green that is visible only to other sharks. The source of this light was previously unknown, but we now know that the hue is made possible by a family of small-molecule metabolites — a method of biofluorescence that differs from others that have been previously studied. And this finding could hold the key to benefits for the biomedical...Read full article

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