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  1. Chemistry

    Explainer: In chemistry, what does it mean to be organic?

    These are molecules formed by combining carbon with other elements, especially hydrogen.

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  2. Tech

    A sense of touch could upgrade virtual reality, prosthetics and more

    Scientists and engineers are trying to add touch to online shopping, virtual doctor appointments and artificial limbs.

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  3. Physics

    Research on climate and more brings trio the 2021 physics Nobel Prize

    Syukuro Manabe and Klaus Hasselmann pioneered work on simulations of Earth’s climate. Giorgio Parisi probed complex materials.

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  4. Plants

    Well-known wildflower turns out to be a secret meat-eater

    Look closely at Triantha occidentalis, and you’ll see gluey hairs — and a trail of insect corpses on its stem.

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  5. Animals

    Analyze This: Some female hummingbirds go undercover

    Some female white-necked jacobin hummingbirds boast bright blue colors similar to males. That may help females blend in to avoid attacks.

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  6. Health & Medicine

    Starting schools later leads to less tardiness, fewer ‘zombies’

    Students attending schools with later start times feel more awake during the day and are less likely to oversleep and be late for class.

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  7. Health & Medicine

    A 2021 Nobel goes for discovering how our body reads touch sensations

    David Julius and Ardem Patapoutian found nerve-cell sensors for temperature, pain and pressure.

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  8. Animals

    There’s a new word for birds stealing animal hair: kleptotrichy

    Dozens of YouTube videos show birds grabbing hair from dogs, cats, people, raccoons and even a porcupine — a behavior rarely described by scientists.

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  9. Health & Medicine

    Seven strategies to keep COVID-safe at school

    Some schools safely brought students back for in-person learning last year. Their experiences suggest how to avoid classroom spread of COVID-19 this year.

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  10. Earth

    Scientists Say: Anthropocene

    Humans are changing the world in profound ways. Some scientists think those changes have launched a new epoch in Earth’s history: the Anthropocene.

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  11. Oceans

    Moon’s orbital wobble can add to sea-level rise and flooding

    In a dozen years or so, the tide-enhancing effects of a wobble in the moon’s orbit should lead to dramatically higher sea levels in some coastal cities.

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  12. Health & Medicine

    Weight shaming is literally sickening

    Many people think it’s okay to shame people for their weight. Not only is that cruel, but it also can harm their mental and physical health.

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