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Scientists find the molecule that delivers itchiness signals to the brain via a dedicated, and previously unknown, neural pathway.
Image of the Day: Desert Rose
The white Mexican rose, Echeveria elegans, is a water-storing, evergreen perennial with tight rosettes that bear yellow-tipped, pink flowers in the winter and spring.
| January 28, 2013
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The International Institute for Species Exploration at Arizona State University reveals its list of the top 10 new species of 2012.
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