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  1. Humans

    Human-Neandertal mating gets a new date

    Late Stone Age interbreeding between Neandertals and people may have left a mark on Europeans’ DNA.

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  2. Space

    Superfast star spotted orbiting Milky Way’s black hole

    Upcoming gravitational close encounter will test relativity theories in the extreme.

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  3. Life

    Duck-billed dino could slice and dice

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

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  4. 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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  5. Life

    Black mamba bite packs potent painkiller

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

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  6. Animals

    Right eye required for finding Mrs. Right

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

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  7. 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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  8. 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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  9. 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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  10. 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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  11. Life

    Ants’ hive mind

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

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  12. 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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