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February 6, 2013 APRNWreckage believed to be from the 2011 Japanese tsunami is washing up thousands of miles away in Alaska. The debris isn't just unsightly — it poses environmental worries for the landscape and animals. One conservationist says the problem may be worse than the Exxon Valdez oil spill.

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February 6, 2013 Building your own stuff boosts your feelings of pride and competence, and also signals to others that you are competent. As a result, most of us believe we labor on things we love. Now, psychologists are asking if it is the other way around — is it labor that leads to love?

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February 5, 2013 A study finds that guys who watched a lot of TV had lower sperm counts than more active fellows. The effect held true even when other factors, such as body weight and diet, were taken into account.

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February 5, 2013 Spielberg's were big, green and scaly. The real ones? They were often rosy, yellow, orange, iridescent, covered with fuzz, plumes, or feathers. Take a look at this latest take on the Jurassic, when reptiles, we think, looked more like rainbows.

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February 4, 2013 Many of them have cut out smoking, and rates of heart attack and emphysema have declined. But baby boomers are burdened with diabetes, hypertension and many other chronic conditions. Researchers say too little exercise and a rise in obesity threaten baby boomers' golden years.

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February 4, 2013 Some people with damage to a specific region of the brain called the amygdala do not feel fear. If you make them handle a snake or show them a scene from a scary movie such as The Shining, they won't be affected. But breathing in air with high levels of carbon dioxide can send them into a panic.

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February 4, 2013 At the age of 23 and with only $30 in his pocket, Barrington Irving became the youngest person to fly around the world. Host Michel Martin talks to Irving about getting kids on board with math and science from a 'flying classroom.'

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On Tell Me MorePlaylist

February 4, 2013 I know you've wondered: What would happen if an irresistible object is launched at an immovable object? Who wins? What happens? Well, here's the answer. It's not what you'd expect.

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February 4, 2013 WFAEThe prefabricated nuclear reactors, which would be small enough to build in a factory and ship on trucks, would generate about one-tenth the power of a typical nuclear power plant. It's potentially a growth opportunity for American industry, but critics say the reactors carry a host of safety, security, environmental and economic concerns.

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February 3, 2013 The U.S. Fish and Wildlife may upgrade the wood stork's status from "endangered" to "threatened." But some environmentalists and the Audubon Society says that in south Florida, the bird's population is still a long way from reaching a full recovery.

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February 2, 2013 The Macaulay Library at the Cornell Lab of Ornithology has just finished digitizing its huge archive of wildlife sounds — more than 9,000 of them — and made it available online.

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