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6:14 am
Sun September 8, 2013

'Memory Pinball' And Other Reasons You Need A Nap

On the surface, sleep may seem like an evolutionary disaster, but its benefits have come to outweigh its potential downsides.
iStockphoto.com

Originally published on Sun September 8, 2013 12:40 pm

We spend about one-third of our lives sleeping, but much of that function remains a mystery. Weekend Edition Sunday is asking some pretty fundamental, yet complicated, questions about why we do it and why we can't seem to get more of it.

Dr. Matthew Walker says the question of why we sleep remains "that archetypal mystery."

Walker, the principal investigator at the sleep lab the University of California, Berkeley, works with patients who suffer from sleep abnormalities. He says the complexity of sleep makes the research that much more fascinating.

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Sunday Puzzle
4:40 am
Sun September 8, 2013

Close, But No Cigar

NPR

Originally published on Mon September 9, 2013 1:09 pm

On-air challenge: Each of the following answers is a made-up, two-word phrase in which the two words are homophones, and both words start with the letter C.

Last week's challenge from listener Henry Hook of Brooklyn: Think of a well-known celebrity who goes by a single name — the last two letters of which are alphabetically separated by only one letter (like A and C, or B and D). Replace this pair of letters with the one that separates them, and you'll have a common, everyday word. What is it?

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Environment
4:32 am
Sun September 8, 2013

Climate Change Leaves Hares Wearing The Wrong Colors

A white snowshoe hare against a brown background makes the animal easy prey.
L.S. Mills Research Photo

Originally published on Sun September 8, 2013 12:40 pm

The effects of climate change often happen on a large scale, like drought or a rise in sea level. In the hills outside Missoula, Mont., wildlife biologists are looking at a change to something very small: the snowshoe hare.

Life as snowshoe hare is pretty stressful. For one, almost everything in the forest wants to eat you.

Alex Kumar, a graduate student at the University of Montana, lists the animals that are hungry for hares.

"Lynx, foxes, coyotes, raptors, birds of prey. Interestingly enough, young hares, their main predator is actually red squirrels."

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The Mix
3:07 am
Sun September 8, 2013

The Mix: Britpop At 20

Members of Suede in 1993, left to right: Simon Gilbert, Bernard Butler, Brett Anderson, Matt Osman.
Steve Jennings Corbis

Originally published on Thu December 5, 2013 6:22 pm

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Author Interviews
2:14 am
Sun September 8, 2013

The 'Wild' Story Of Cheryl Strayed And Her Long-Lost Half-Sister

In addition to Wild, Cheryl Strayed is also the author of Torch and Tiny Beautiful Things.
Joni Kabana Courtesy Knopf

Originally published on Sun September 8, 2013 12:40 pm

Back in 1995, Cheryl Strayed hiked 1,100 miles of the Pacific Crest Trail along the West Coast of the United States. After the three-month journey, she came out on the other side stronger in every way: better able to cope with her divorce, her past drug abuse and her mother's death.

Strayed described the life-changing trek in her 2012 bestselling memoir Wild, and received countless emails from readers describing how connected they felt to her story. But there was one message that stood out in particular:

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