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New research shows lifelong bikers have healthier knees, less pain and a longer lifespan, compared to people who've never biked. This adds to the evidence that cycling promotes healthy aging.
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Some otters rely on tools to bust open hard-shelled prey items like snails, and a new study suggests this tool use is helping them to survive as their favorite, easier-to-eat foods disappear.
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Tiger beetles generate "anti bat-sonar" to prevent echolocating bats from eating them, scientists say. An experiment suggests the beetles mimic sounds created by poisonous insects that bats avoid.
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An outbreak of avian flu in dairy cow herds has resurfaced long-simmering tensions between the federal government and raw milk advocates, who downplay concerns that health officials have raised.
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"Moon Trees" are starting to grow on Earth. They got that name because as seeds they spent some time in space.
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Scientists are looking at the ways humans change the planet — and the impact that has on the spread of infectious disease. You might be surprised at some of their conclusions.
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Powerful synthetic opioids and drugs like meth and cocaine still flood U.S. communities, fueling historically high overdose deaths.
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When Amylyx Pharmaceuticals found out its ALS drug Relyvrio didn't work, the company took the unusual step of voluntarily pulling it off the market.
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Rick Slayman, who in March became the first living person to receive a kidney from a genetically modified pig, has died. One of his doctors talks about what was learned from the historic transplant.
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A new study warns that millions of people around the world who are 69 years or older will be at risk of dying in heat waves by 2050.
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The state covers basic services for vulnerable residents, including things like air purifiers for kids with asthma. But nonprofits offering the services struggle to work within the health care system.
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Telehealth accounts for 19% of all abortions, new research finds. And while the number of abortions did plummet in ban states, overall abortions across the country are up.