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On The Ant Highway, There's Never A Backup

A team of Indian physicists has made a mathematical model that purports to explain why ants don't have traffic jams. NPR's Joe Palca explains as part of his series, Joe's Big Idea.
NPR

Another Day, Another 'Close Call' Between Earth And An Asteroid

A rare large asteroid zipped very close to Earth Monday morning. NPR's Robert Siegel talks to Paul Chodas, head of the Jet Propulsion Laboratory's Near-Earth Object program, about the "close call."
NPR

High Schools Seek A Safer Path Back From Concussion

Returning immediately to demanding physical or mental activities after a concussion can be bad for the brain, neuroscientists agree. But what about after symptoms resolve? How much rest is best?
NPR

DNA Blood Test Gives Women A New Option For Prenatal Screening

A simple blood test can analyze bits of fetal DNA leaked in the mother's bloodstream. It's less risky than invasive alternatives like amniocentesis, but it doesn't tell as much about fetal health.
NPR

Obama Proposes New Protections For Arctic National Wildlife Refuge

The president recommends more than 12 million acres of the region receive the highest level of protection available for public lands.
NPR

Study Says Creativity Can Flow From Political Correctness

There is a common belief that requiring the use of "politically correct" language in the workplace stifles creativity. Researchers decided to see if that notion held up to scrutiny.
NPR

'How Do You Tell Your Kids That You Got Alzheimer's?'

Writer Greg O'Brien was diagnosed with early-onset Alzheimer's disease five years ago. He describes what it was like to hear the news — and break it to his family.
NPR

Will Environmentalists Fall For Faux Fish Made From Plants?

A handful of chefs and food companies are experimenting with fish-like alternatives to seafood. But the market is still a few steps behind plant-based products for meat and dairy.
NPR

Leaky Blood Vessels In The Brain May Lead To Alzheimer's

As vessels become more porous, researchers say, they allow toxins in the bloodstream to reach, and damage, delicate brain cells and raise the risk for dementia.
NPR

Brewers Gone Wild: Taming Unpredictable Yeast For Flavorful Beer

A handful U.S. craft brewers are reviving an age-old way of making beer that was practically unthinkable a decade ago. Welcome to the wacky world of Brett, a local yeast that can impart funky flavors.

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