Birds change the shape of their wings far more than planes. The complexities of bird flight have posed a major design challenge for scientists trying to translate the way birds fly into robots.
(Image credit: Lentink Lab/Stanford University)
Forty mice spent more than a month in orbit to test two approaches to strengthening muscle and bone in microgravity conditions. The results could help people with muscle and bone diseases.
(Image credit: Se-Jin Lee/PLOS One)
Aiming to find a cheaper, easier way than IVF to ensure human embryos are healthy before implantation, researchers paid women to be inseminated, then flushed the embryos from their wombs for analysis.
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Pope Benedict promised to remain out of sight when he retired in 2013. Instead he has ignited a firestorm over the importance of priestly celibacy, an issue Pope Francis is currently weighing.
We live in a world of stories. They're in movies, books, and plays. They're even in the things that we buy.
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Researchers found that African grey parrots voluntarily helped a partner get a food reward by giving the other bird a valuable metal token that could be exchanged for a walnut.
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According to The New England Journal of Medicine, more people are choosing to die at home rather than in a hospital. It's a trend that's shifting how we think about care at the end of life.
People with sickle cell disease aren't fueling the opioid crisis, research shows. Yet some ER doctors still treat patients seeking relief for agonizing sickle cell crises as potential addicts.
(Image credit: Johnathon Kelso)
A recent study found students may inadvertently choose their college major, in part, based on how tired they were in the subject's introductory course — especially if it was an early morning class.
The vaccine for tuberculosis has been around since the 1920s but it doesn't work very well. A new study shows that the vaccine could be far more effective if given at higher doses, intravenously.
Joy can be cultivated. Hostility often masks depression. As one year ends and another begins, these six insights and tips from psychologists offer hope for a good new year.
(Image credit: Michael Driver for NPR)
NPR tells the exclusive, behind-the-scenes story of the first person with a genetic disorder to be treated in the United States with the revolutionary gene-editing technique CRISPR.
(Image credit: Meredith Rizzo/NPR)
The Fraser fir is found in a lot of homes around Christmas. But its wild cousins have been in decline for almost a century because of a small invasive pest.
(Image credit: Irina Zhorov for WHYY)
In some historical Nativity scenes, the shepherds have grossly enlarged thyroid glands — also known today as goiter. It's an apparent symbol of their poverty and iodine-deficient diet.
(Image credit: Renzo Dionigi)
The number of men who use tobacco has declined for the first time since the World Health Organization started tracking it. The shift is significant because 80 percent of smokers are men.
The world's tallest active geyser is Steamboat Geyser, in Yellowstone National Park. It's been on a real eruption streak lately and 2019 saw the most recorded eruptions in a calendar year.
(Image credit: Jacob W. Frank/NPS)
The spate of more than 2,500 acute vaping-related lung injuries tracked by the Centers for Disease Control and Prevention is on the decline, epidemiologists say, and the number of deaths has slowed.
(Image credit: Jelacic Valentina/EyeEm/Getty Images)
Delivery service could make it easier to access fresh, healthy food in these areas, a study finds. It lends support to a pilot program that lets people pay for these groceries with food stamps.
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NPR got an early look at data showing vastly different opportunities for children of different races across the U.S. living just neighborhoods apart. Albany, N.Y., has some of the biggest inequities.
Among the findings are a gold pendant with the image of an Egyptian goddess, suggesting wider interaction between ancient Greece and Egypt than previously known.
(Image credit: Greek Culture Ministry/AP)