From Molecules to Organisms: Structures and Processes
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Tech
Fashioning inks to ‘print’ tissues
3-D printing may one day create life-saving tissues and organs for transplants. But first researchers are learning how to tailor cell-filled “inks” for use in inkjet printers.
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Animals
Elephants appear to be super sniffers
Elephants are not only massive, but also possess the most odor-detecting genes of any animal known, new research shows.
By Nsikan Akpan -
Environment
Bug-killer linked to decline in birds
One of the most popular chemicals used to protect crops from bugs may also take a toll on birds, a Dutch study finds. U.S. farmers also rely on these insecticides, a second study finds.
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Animals
Keep the lights on for National Moth Week
Helping scientists is as easy as leaving your porch light on. Photograph the moths you see and upload them to the Internet for science.
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Health & Medicine
Young blood: The elixir of youth?
Old mice show improved memory when blood from young mice circulated through their brains, a new study finds. Other studies suggest one ingredient in that young blood might be all it takes to deliver benefits.
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Science & Society
Dissect a frog and keep your hands clean
Dissecting frogs can be a fun and useful way to learn about anatomy. If you don’t have a frog on hand, here are three smartphone apps that allow you have your frog legs and dissect them, too.
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Animals
Cool Jobs: A whale of a time
Studying blue whales, spinner dolphins and other cetaceans demands clever ways to unveil the out-of-sight behaviors of these marine denizens.
By Eric Wagner -
Fossils
Hot-blooded dinos? Try lukewarm
New study finds these reptiles may have had an internal furnace that sort of resembled some sharks. It appeared to run neither hot nor cold.
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Genetics
Owww! The science of pain
No one likes pain, but it keeps us alive. That’s why scientists want to learn how best to coexist with this complicated and still somewhat mysterious sensation.
By Kirsten Weir -
Animals
Salted butterflies
The salt used on winter ice can alter the bodies of summer's butterflies. Males develop larger muscles and females get bigger brains.
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Brain
Hunger’s little helpers
Astrocytes were thought to be nothing more than support cells for neighboring nerve cells. A new study suggests they do much more. These brain cells may help control appetite, too.
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Animals
A library of tweets (and howls and grunts)
The Macaulay Library houses a world of animal sounds. And now anyone with an Internet connection can check out this audio collection.