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Sweet: Dunkin' Donuts and Krispy Kreme Pump Up Pledge On Palm Oil

Two major doughnut chains have bowed to consumer pressure to better police their palm oil purchases. Environmentalists say it's a win for consumers, trees and animals.
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Killing Comes Naturally To Chimps, Scientists Say

A new study bolsters the theory that chimpanzees kill rivals as an adaptation to their natural environment and not as a result of human impact.
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From Coffee To Chicory To Beer, 'Bitter' Flavor Can Be Addictive

If you don't think you like bitter foods, try them again. Jennifer McLagan, the author of Bitter: A Taste of the World's Most Dangerous Flavor, is on a mission to change hearts and minds.
NPR

Study Of 'Flexible Brains' May Aid Injury Understanding

Physicist Danielle Bassett has been awarded a MacArthur Fellowship based on her work studying the human brain. She talks with Melissa Block about the advances it may lead to.
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Diet Soda May Alter Our Gut Microbes And Raise The Risk Of Diabetes

There's a new wrinkle to the old debate over diet soda: Artificial sweeteners may alter our microbiomes. And for some, this may raise blood sugar levels and set the stage for diabetes.
NPR

Multispectral Imaging Could Reveal Secrets Of Martellus Map

A team of researchers are using multispectral imaging to uncover hidden text on a 1491 Martellus map, one of the most important maps in history. Lead researcher Chet Van Duzer thinks the discoveries will allow historians and scholars to see just how the map influenced cartography in its time.
NPR

Europe's Family Tree Gets A New Branch

Genetic evidence from ancient humans and modern people suggests that travelers from northern Eurasia moved south several thousand years ago. They stuck around to have kids with early European farmers.
NPR

Colorado Tries Hard To Convince Teens That Pot Is Bad For You

Do you want to be a lab rat? That's what teenagers are doing when they smoke marijuana, the state of Colorado says. But since hard evidence of marijuana's harms is scanty, it may be a tough sell.
NPR

Top Scientists Suggest A Few Fixes For Medical Funding Crisis

The answer, this time, isn't simply more cash, says Dr. Harold Varmus, director of the National Cancer Institute. Instead, changing the way research money is distributed might fix systemic problems.
NPR

Meet The 2014 Winners Of The MacArthur 'Genius Grants'

This year's winners include a cartoonist, a documentarian, a leader in the legal fight for gay marriage, a saxophonist, mathematicians and scientists, poets, lawyers and advocates.

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