National Chocolate-Covered Anything Day on Dec. 16 turns American kitchens into test labs for bold, unconventional treats. Instead of sticking to fruits or cookies, people dip items that spark ...

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NPR's Hannah Chinn and Emily Kwong talk about the microbes behind great-tasting chocolate, possible reasons for daytime drowsiness, and a curious observation about the poop of seabirds. And it is time ...