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Martian gully theory doesn't hold water, study finds

In spite of the flowing gouges they leave behind, gullies on the Red Planet may not have been formed by liquid water, according to data from NASA’s Mars Reconnaissance Orbiter. The findings, described in Geophysical Research Letters, showcase the complexity of Martian geology and highlight how...

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  • Remember the Ice Bucket Challenge? It helped fund discovery of ALS-related gene

    Remember the Ice Bucket Challenge? It helped fund discovery of ALS-related gene

    The ALS Assn. is crediting money raised through the Ice Bucket Challenge for the discovery of a gene's connection to the progressive disease. Those who accepted the challenge allowed buckets of ice water to be dumped on their heads to raise awareness and money for ALS. The challenge became a viral...

  • New species of tiny endangered fish found only at Camp Pendleton

    New species of tiny endangered fish found only at Camp Pendleton

    Scientists say a tiny endangered fish found in lagoons and streams along the California coast belongs to two separate species. The tidewater goby, a 2-inch translucent fish, survives in relatively isolated populations from Del Norte County down to San Diego. The fish spend most of their lives in...

  • Scientists find microbiotic treasure hidden in the nose

    Scientists find microbiotic treasure hidden in the nose

    Your mother told you early and often not to stick your finger up there. But scientists say they have reached into the human nose and picked out something really special — a potential new medicine to combat the dreaded MRSA bacteria. If the authors of a new report have their way, teams of researchers...

  • Are skin-cancer checks by doctors worth the trouble?

    Are skin-cancer checks by doctors worth the trouble?

    A federal task force that assesses the value of medical screening tests says it can't judge whether skin-cancer checks by dermatologists are worth the trouble for healthy Americans because good research on the practice is lacking. The finding of the U.S. Preventive Services Task Force is not a...

  • Could ice volcanoes explain Ceres' missing craters? Dwarf planet puzzles scientists

    Could ice volcanoes explain Ceres' missing craters? Dwarf planet puzzles scientists

    Sometimes it’s what’s missing that really stands out. Scientists using data from NASA’s Dawn mission have found that the dwarf planet Ceres seems to completely lack any giant impact craters, even though it has plenty at smaller sizes. The findings, described in the journal Nature Communications,...

  • Cloned animals don't age any faster than conventional ones, study says

    Cloned animals don't age any faster than conventional ones, study says

    Dolly the sheep, the world’s first clone of an adult animal, died in middle age. But a new study makes the case that the extraordinary circumstances of her birth did not play a role in her untimely death. After examining more than a dozen cloned sheep old enough to be considered senior citizens —...

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Nutrition & Obesity

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  • To do better in school, kids should exercise their bodies as well as their brains, experts say

    To do better in school, kids should exercise their bodies as well as their brains, experts say

    Attention parents: If you’d like to see your kids do better in school, have them close their books, set down their pencils and go outside to play. That’s the latest advice from an international group of experts who studied the value of exercise in school-age kids. “Physical activity before, during...

  • Americans' diets improve, but ethnic and income gaps widen

    Americans' diets improve, but ethnic and income gaps widen

    More American adults are eating better, but a new analysis of American diets between 2000 and 2012 shows that the trend of improved nutrition is largely limited to middle- and upper-income white Americans. The result: a widening nutrition gap separating white Americans from African Americans and...

  • In U.S., 38% of adults and 17% of kids are now obese, CDC study says

    In U.S., 38% of adults and 17% of kids are now obese, CDC study says

    How do government agencies, private foundations, industry groups and professional societies squander hundreds of millions of dollars? By trying to fight America’s obesity epidemic. Two new studies show that the best efforts of all these players – as well as schools, churches and individual healthcare...

Human Behavior

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