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Science  26 Jun 2009:
Vol. 324, Issue 5935, pp. 1631
DOI: 10.1126/science.324_1631

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Highlights from Science's online daily news site, ScienceNOW, this week include a criminal investigation tool that can be used to track sharks, atoms speeding from the moon, a fish that throws away its genes as it grows, and a yawn from the napping sun.