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Life & Evolution

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READY FOR A CLOSE-UP  Dolly the Sheep’s bones were X-rayed to determine whether the sheep was plagued by arthritis linked to cloning.

bowl of cookie batter

DOUGH DEBACLE  In 2015 and 2016, E. coli-tainted flour sickened dozens of people in the United States, most of whom had eaten raw dough or batter while baking. 

white-crowned sparrow

FOR THE BIRDS  Eating even a few pesticide-coated seeds can disorient white-crowned sparrows, new studies suggest.

Life & Evolution

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