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Data Linking Aspartame To Cancer Risk Are Too Weak To Defend, Hospital Says

We drink a lot of diet soda in this country, so when researchers disavowed a study linking aspartame to rare cancers just before publication, we took notice. The whole issue illustrates what makes scientific studies so confusing to the public. We'll keep you posted on this.
NPR

In Animal Kingdom, Voting Of A Different Sort Reigns

"One common property we see in animal groups from schooling fish to flocking birds to primate groups is that they effectively vote to decide where to go and what to do," says an evolutionary biologist. But like human leaders, successful animal leaders know they can't get too far ahead of their constituents.
NPR

When Fire Met Food, The Brains Of Early Humans Grew Bigger

Because we had better food, our brains grew bigger than those of our primate cousins, scientists say. Early humans cooked, which makes meat and veggies more digestible and nutrients more available to the body. Plus, there was all that chatting and chewing around the campfire.
WAMU 88.5

Environmental Issues And The 2012 Presidential Race

Environmental issues and the 2012 campaign: What President Barack Obama and former Gov. Mitt Romney say and don't say about energy independence, environmental regulations and climate change.

NPR

Baby Beluga, Swim So Wild And Sing For Me

Whales are among the great communicators of the animal world. They produce all sorts of sounds: squeaks, whistles and even epic arias worthy of an opera house. But in the mid-1980s, one beluga whale did something that had never been documented before: It imitated human speech.
NPR

Research Highlights Strengths Of Adolescent Brain

Adolescent brains have gotten a bad rap, according to neuroscientists. It's true that teenage brains can be impulsive, scientists reported at the Society for Neuroscience meeting in New Orleans. But adolescent brains are also vulnerable, dynamic and highly responsive to positive feedback.
NPR

Amateur 'Planet Hunters' Find One With Four Suns

Amateur astronomers recently discovered a planet with four suns. The discovery itself is remarkable — but all the more so because it was made by amateurs. David Greene talks with Arfon Smith from the Adler Planetarium in Chicago about the discovery and the growing contributions that so-called "armchair" astronomers are making to the field.

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