Science Quickly

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Plankton Pee May Alter Ocean's Chemistry Dec 22, 2014

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The urine of a vast army of tiny fish, jellies and shrimpy things may play an important role in the ocean's nitrogen cycle. Christopher Intagliata reports

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Penicillins Reveal Additional Antibacterial Power Dec 19, 2014

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Penicillin and its relatives have been in wide use since the 1940s, but researchers have only now discovered another way that it thwarts bacteria. Karen Hopkin reports

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Short-Term Fasting Made Mice Healthier Dec 17, 2014

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Mice that ate their entire food for the day in an eight-to-12-hour window had better markers for health than did mice free to eat whenever they wanted. Steve Mirsky reports

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Laser Zap Determines Fruit Ripeness Dec 15, 2014

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The way fruit reflects and absorbs laser light may be a good measure of its progression toward peak ripeness. Christopher Intagliata reports

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Birds Roost on New Evolutionary Tree Dec 11, 2014

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In a massive first-of-its-kind whole-genome analysis involving 48 bird species, researchers have created a new avian evolutionary tree. Steve Mirsky reports

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Canary out, Smartphone in for Gas Detection Dec 11, 2014

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By using tiny carbon nanotubes tuned electronically to particular gases, researchers turned smartphones into toxin sensors. Cynthia Graber reports

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Quarter-Million Tons of Plastic Plague Oceans Dec 10, 2014

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Based on trawling samples and visual observations of plastic debris, computer models calculate that some 5.25 trillion particles of plastic—about 269,000 tons—may litter the world's oceans. Christopher Intagliata reports

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Dumpster Diving Provides Drinking Data Dec 09, 2014

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Researchers estimated alcohol consumption at a senior center by putting out recycling bins and counting the bottle contents. Karen Hopkin reports

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Summer Teen Jobs Cut Violence Dec 08, 2014

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A study following teens who had summer jobs found violent crime in that population almost cut in half, during and following the employment. Cynthia Graber reports

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Poorer Kids May Be Too Respectful at School Dec 03, 2014

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Working-class kids ask for help from teachers less often and less aggressively than do their middle-class counterparts

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