Humans

  1. Genetics

    Ebola genome clarifies origins of West African outbreak

    Genetic analyses suggest that a single infected person sparked the ongoing Ebola epidemic in West Africa.

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  2. Anthropology

    Siberians came to North American Arctic in two waves

    Siberian ancestors of the modern-day Inuit replaced a 4,000-year-old North American Arctic culture, a DNA study reveals.

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  3. Health & Medicine

    Human tests of experimental Ebola vaccine set to start

    NIH and NIAID have announced that human tests of an experimental vaccine against Ebola virus will begin in early September.

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  4. Health & Medicine

    To grow new knee cartilage, look to the nose

    Cartilage-making cells from the nose grew into patches that successfully replaced damaged or missing cartilage in the knees of goats and of humans.

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  5. Psychology

    Walking in sync makes enemies seem less scary

    Men who walk in sync may begin to think of their enemies as weaker and smaller, a new study suggests.

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  6. Chemistry

    Liquid salts break through armored bacteria on skin

    Compounds called ionic liquids can penetrate bacterial biofilms on skin to deliver antibiotics to potentially life-threatening infections.

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  7. Health & Medicine

    States’ pot laws linked to drug overdose death rates

    Death rates from drug overdoses appear to be lower in states with medical marijuana laws.

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  8. Psychology

    Hypothesis on evolution of PMS attracts hostility

    A new hypothesis states that PMS is evolutionarily useful for making women leave an infertile partnership. But other scientists question whether the hypothesis is reasonable or, in fact, even necessary.

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  9. Anthropology

    Richard III ate like a king before biting the dust

    King Richard III’s brief reign included a sudden shift to eating fancy food and drink.

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  10. Health & Medicine

    ‘NOVA’ takes science’s side in vaccine debate

    A TV documentary dissects concerns about vaccinations and spells out the science supporting their use.

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  11. Life

    Feedback

    Readers discuss Dulles' microscapes exhibit, baby birthweights and what should be done about the triclosan problem.

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  12. Life

    Test drug stops Marburg virus in monkeys

    Using a nano-size piece of RNA, scientists have stopped Marburg virus in monkeys.

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