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Updated: 9 min 53 sec ago

Beef Packers Block Plan To Revive Growth-Promoting Drug

2 hours 40 min ago

Beef processors continue to block efforts to bring back Zilmax, a drug that makes cattle put on weight faster. Is it because they're concerned about animal welfare, or beef exports?

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Critics Worry Nuclear Reactor Deal With India Has A Dark Side

9 hours 9 min ago

The administration says the reactors are good for the climate, good for American industry and for strengthening ties with India. But some worry the deal also has a dark side.

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On The Ant Highway, There's Never A Backup

January 26, 2015 - 4:00pm

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.

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

January 26, 2015 - 4:00pm

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."

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High Schools Seek A Safer Path Back From Concussion

January 26, 2015 - 3:59am

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?

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DNA Blood Test Gives Women A New Option For Prenatal Screening

January 26, 2015 - 3:58am

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.

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DNA Blood Test Gives Women A New Option For Prenatal Screening

January 26, 2015 - 3:58am

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

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Obama Proposes New Protections For Arctic National Wildlife Refuge

January 25, 2015 - 2:54pm

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

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Study Says Creativity Can Flow From Political Correctness

January 24, 2015 - 6:14pm

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.

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

January 24, 2015 - 5:37pm

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.

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Will Environmentalists Fall For Faux Fish Made From Plants?

January 23, 2015 - 7:17pm

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.

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High Schools Seek A Safer Path Back From Concussion

January 23, 2015 - 5:15pm

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?

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

January 23, 2015 - 4:06pm

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.

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Brewers Gone Wild: Taming Unpredictable Yeast For Flavorful Beer

January 23, 2015 - 4:01pm

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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Taking Antibiotics During Travel Fosters Drug-Resistant Germs

January 23, 2015 - 3:36pm

Many of us take antibiotics when we get tummy troubles in developing countries. Scientists say this opens the door for a dangerous visitor in the GI tract. These microbes can stick around for months.

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Why NFL Teams Should Reconsider Giving Coaches The Heave-Ho

January 23, 2015 - 5:03am

Research finds the systematic elimination of losing coaches by NFL teams generally leads to weaker performance among those teams in the following few years.

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A Blind Woman Gains New Freedom, Click By Click By Click

January 23, 2015 - 3:37am

Blind since birth, Julee-anne Bell learned to get by better on her own with echolocation, a method explored in this week's Invisibilia. But along the way, she found that independence came with costs.

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Ecologist's Airborne Scanners See The Forest And The Trees — All Of Them

January 22, 2015 - 9:47pm

Gregory Asner has loaded a plane with lasers, spectrometers and computers to create models so detailed, they distinguish between and count plant species in even the densest biomes, like the Amazon.

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Goosebumps And Gas: New Data From Rosetta Probe Describes Comet

January 22, 2015 - 9:16pm

We're learning more about the comet that a European Space Agency paired up with its Rosetta probe last fall. For one thing, it has "goosebumps" on steep cliff faces. It's also highly porous.

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Investment Fund Pours Cash Into Cleaner, Greener Fish Farming

January 22, 2015 - 6:43pm

Aqua-Spark is the world's first investment fund for sustainable aquaculture. So far it has bet on an alternative fish feed that could take pressure off the oceans and a tilapia farm in Mozambique.

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