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Some birds kill their siblings soon after hatching. Other birds spend their whole lives with their siblings and will even risk their lives to help each other.
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Bio-char is gaining traction as a regenerative agriculture technique that could improve soil while sequestering carbon. But cost and education are still barriers to more widespread use on farms.
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A United Nations official said negotiators have a "clear path to landing an ambitious deal" on plastic pollution. But environmentalists say the plastic industry is undermining an effective agreement.
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A rise in breast cancer among younger women prompted the U.S. Preventive Task Force to issue new screening guidelines. They recommend mammograms every other year, starting at age 40.
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An economic perspective on misinformation
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A therapy that restores brain cells impaired by a rare genetic disorder may offer a strategy for treating conditions like autism, epilepsy, and schizophrenia.
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A new study shows people who are in the habit of climbing stairs are less likely to die from heart disease compared to those who don't. Stair climbers also had a slight boost in longevity.
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A trial for a mass environmental injury case begins in Hawaii on Monday, more than two years after a U.S. military facility poisoned thousands of people when it leaked jet fuel into drinking water.
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The federal government says it will restore grizzly bears to the North Cascades region in Washington state, where they have not been seen since 1996.
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A recent survey found that Americans' sleep patterns have been getting worse. Adult women under 50 are among the most sleep-deprived demographics.