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When hunter-gatherers started adding grains and starches to their diet, it brought about the "age of cavities." At least, that's what a lot of people thought. But it turns out that even before agriculture, what hunter-gatherers ate could rot their teeth. The problem: At least some of these ancients had a thing for acorns.

The Washington, D.C., band infuses its polished new album with the raw energy of its live shows.

A new year brings yet another opportunity to hit the rest button and resolve to change some of your music listening habits.

Medicare spends about $20 billion each year on implanted medical devices. Nearly half of the total goes for orthopedic surgery. Yet doctors who were surveyed about implant prices could only accurately estimate the prices about one-fifth of the time.

The southwestern U.K. is getting slammed by huge waves whipped up by 70 mph winds accompanying a low-pressure system sweeping in from the Atlantic.

With weather this cold, you could make an instant Slurpee and "snow" from boiling water.

A dozen war heroes from South Sudan's long struggle for independence are now accused of launching a coup to overthrow the democracy they helped create. One of them, Peter Adwok Nyaba, was telling NPR's Gregory Warner about the political roots of the conflict when police came for him.

European scientists were alarmed in 2008 when they discovered streams of methane bubbles erupting from the seafloor in Norway's high Arctic. This gas, which contributes to global warming, was apparently coming from methane ice on the seafloor. A follow-up study finds that methane bubble plumes at this location have probably been forming for a few thousand years, so they are not the result of human-induced climate change. But continued warming of ocean water can trigger more methane releases in the Arctic, with potentially serious consequences to the climate.

Janet Yellen, 67, will become the first woman to serve as America's banking chief, heading an institution that was established in 1913.

Even before family health issues arose, Cheney's campaign appeared to face dim prospects in the Wyoming GOP primary against Sen. Mike Enzi. One lesson from her now-ended bid: A famous political name only gets you so far.