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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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On Morning EditionPlaylist

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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On All Things ConsideredPlaylist

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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On Weekend Edition SaturdayPlaylist

February 1, 2013 Why do we reach for that handful of M&Ms and other high-calorie treats under stress? In prehistoric times, such gluttony was probably a useful response to scarcity. That "feast before famine" instinct is less helpful in modern times, when obesity is a bigger health risk than starvation – but evolution hasn't had a chance to catch up.

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February 1, 2013 Research from an Ohio sociologist has found that inmates "earn" illegal money in greater amounts after they serve time. Prison may serve as a classroom where inexperienced delinquents learn from hardened criminals — and become more dangerous criminals themselves.

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On Morning EditionPlaylist