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Zookeepers Pressed to Decide Which Species to Save

Zoos are having to make tough choices about which endangered animals to try to save. The reality is that they can't save them all. ...

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Facebook and Organ Donations

With demand for healthy organs for transplantation growing worldwide, Facebook has become a popular channel for people soliciting kidneys, livers and other potentially lifesaving organs. Earlier this month the social network began offering members the ability to identify themselves as organ donors on their Facebook pages and to locate state organ-donation registries if they would like to become donors. ...

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Did Developmental Timing Give Birds an Edge?

A new study suggests that retained juvenile traits may have helped birds outlive dinosaurs through a process known as paedomorphosis. ...

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SpaceX Dragon Splashdown 'Like Seeing Your Kid Come Home'

The privately launched SpaceX Dragon supply ship returned to Earth last week, ending a revolutionary nine-day voyage to the International Space Station with an old-fashioned splashdown in the Pacific. The unmanned capsule parachuted into the ocean about 500 miles off Mexico's Baja California. ...

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Science at the Top of the News for May 29-June 1

A new study suggesting that climate skepticism is not necessarily rooted in science illiteracy was the most-viewed item last week by subscribers to Science in the News Daily. Other popular stories focused on why stout bubbles sink and some surprising new theories about the center of the Earth. Subscribe for free daily updates.

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Panel Advises Dropping PSA Test

A government task force made the controversial recommendation last week that the PSA test should be abandoned as a prostate cancer screening tool. The panel came to that conclusion after determining that the side effects from needless biopsies and treatments hurt many more men than are potentially helped by early detection of cancers. ...

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Arctic Methane: 'The Warming Will Feed the Warming'

There are thousands of sites in the Arctic where methane that has been stored for millennia is bubbling into the atmosphere. The methane has been trapped by ice, but is able to escape as the ice melts. Researchers say this ancient gas could have a significant impact on climate change. ...

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A Promising Advance in Dye-Sensitized Solar Cells

Solar cells could become much cheaper thanks to improvements in a more than 20-year-old solar technology that captures light with dye molecules. The advance is "one of the most important breakthroughs in dye cells in the last several years," says a chemist at Pennsylvania State University, University Park. ...

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