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10:41am

Mon July 28, 2014
Shots - Health News

With Men's Y Chromosome, Size Really May Not Matter

The human Y chromosome, left, holds the code for "maleness;" that's the X on the right.
Andrew Syred/Science Source

Basic biology has it that girls are girls because they have two X chromosomes — the things inside cells that carry our genes. Boys are boys because they have one X and one Y. Recently, though, there's been a lot of debate in scientific circles about the fate of that Y chromosome — the genetic basis of maleness.

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6:17am

Mon July 28, 2014

5:24am

Mon July 28, 2014
The Two-Way

Book News: The Clash Of The Comic(-)Cons

Originally published on Mon July 28, 2014 6:57 am

Fans dressed as stormtroopers from Star Wars attend this year's Comic-Con event in San Diego.
Frazer Harrison Getty Images

The daily lowdown on books, publishing, and the occasional author behaving badly.

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3:00am

Mon July 28, 2014
Science

Shifts In Habitat May Threaten Ruddy Shorebird's Survival

Originally published on Mon July 28, 2014 4:09 am

Guided by biologists, volunteers briefly catch, band and release some of Delaware's visiting red knots each spring to monitor the health of the species.
Maggie Starbard NPR

An intrepid bird called the red knot migrates from the southern tip of South America to the Arctic and back every year. But changes in climate along its route are putting this ultramarathoner at risk.

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3:00am

Mon July 28, 2014
Deceptive Cadence

The Great War At 100: Music Of Conflict And Remembrance

Originally published on Mon July 28, 2014 10:26 am

Austrian pianist Paul Wittgenstein (who later became an American citizen) lost an arm in World War I. He commissioned composers including Maurice Ravel to write pieces for the left hand alone.
Bettmann/CORBIS

One hundred years ago today, the Austro-Hungarian Empire declared war on Serbia. The conflict drew in country after country and grew to an unprecedented scale. An estimated 9 million combatants lost their lives and more than 21 million were wounded in what came to be known as The Great War and, eventually, World War I.

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