"Can something be called chicken or pork if it was born in a flask and produced in a vat?" asks Michael Spector. "Questions like that have rarely been asked and have never been answered." iStockphoto.com hide caption

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Two polar bears spar on the shoreline of the Hudson Bay in November 2007. Paul J. Richards/AFP/Getty Images hide caption

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This image shows the above-normal water temperature in the Pacific Ocean during the December 1997 El Nino. Green-blue colors represent normal temperatures; dark red indicates hotter water. NOAA hide caption

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"Shrimp on a treadmill" has become a euphemism for questionable government spending on scientific research. The actual research study was focused on how water quality affects a shrimp's performance. Lou Burnett/College of Charleston hide caption

itoggle caption Lou Burnett/College of Charleston

A look inside the Dark Energy Camera shows the 74 blue-tinged sensors that detect light. The camera will survey distant, faint galaxies to learn more about dark energy. Reidar Hahn/Fermilab hide caption

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Many individuals with body dysmorphic disorder turn to plastic surgery. iStockphoto.com hide caption

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A new study finds that when applying for scientific research grants from the National Institutes of Health, white researchers succeeded 25 percent of the time, while blacks about 15 percent of the time. Above, the Mark O. Hatfield Clinical Research Center at the NIH Campus in Bethesda, Md. NIH hide caption

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