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  1. Life

    Duck-billed dino could slice and dice

    Ancient animal’s teeth were made of six different tissue types.

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  2. Life

    Mouse stem cells yield viable eggs

    Japanese scientists’ technical feat might provide new insights about protecting and extending human fertility.

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  3. Life

    Black mamba bite packs potent painkiller

    Scientists find that a component of snake venom blocks pain-sensing nerve signals.

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  4. Animals

    Right eye required for finding Mrs. Right

    Finches flirt unwisely if they can only use their left eyes.

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  5. Chemistry

    Chemical bond shields extreme microbes from poison

    Molecular structure explains how ‘arsenic life’ bacteria instead survive by fishing out phosphate from their surroundings.

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  6. Astronomy

    Cohabiting black holes challenge theory

    The observation of two stellar-mass objects in one globular cluster violates existing astrophysical dogma.

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  7. Humans

    Car-crazy kid wins middle school science competition

    First place at Broadcom MASTERS goes to 14-year-old who studied automotive aerodynamics.

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  8. Health & Medicine

    Common heart treatment fails to help

    People prescribed beta blockers are no more likely to avoid a heart attack or stroke than those not getting them.

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  9. Life

    Ants’ hive mind

    The insects make better decisions collectively than when on their own.

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  10. Science & Society

    Misconduct prompts most retractions

    Two-thirds of scientific papers pulled from journals are for fraud, suspected fraud and plagiarism.

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  11. Earth

    Bad days for dinosaurs began long before the last of them died

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  12. Space

    Atom & Cosmos

    The gassy halo engulfing the Milky Way, a comet in the neighborhood, and extraterrestrial rocks as the source of life on Earth.

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