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  1. Chemistry

    New bond in the basement

    Scientists identify a sulfur-nitrogen link, never before seen in living things, critical to holding the body together.

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  2. Health & Medicine

    Mice with mutation feel the burn

    Instead of becoming obese, mice with a mutation in an immune gene burn off the fat they eat.

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  3. Health & Medicine

    From three to four chambers

    Scientists identify gene that may shape the heart.

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  4. Archaeology

    Europe’s oldest stone hand axes emerge in Spain

    Researchers report identifying Europe’s oldest stone hand axes at Spanish sites dating to 900,000 and 760,000 years ago.