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  1. Health & Medicine

    Vitamin C may treat cancer after all

    Vitamin C may be an effective cancer fighter when taken intravenously in high doses.

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  2. Anthropology

    Wild gorillas take time for tool use

    Gorillas that balance on walking sticks and trudge across makeshift bridges have provided the first evidence of tool use among these creatures in the wild.

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  3. Math

    Binary Dice

    A set of specially marked, black-and-white dice suggests novel puzzles and games.

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  4. Earth

    Invisible Rivers

    The fresh water that seeps from continents into coastal waters via submarine springs is a phenomenon that many scientists are just beginning to appreciate, model, and accurately measure.

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  5. 19601

    Nothing was said in your article about the situation in Canada, where killing bears for their gallbladders and paws is a serious problem. I suggest that you contact TRAFFIC North America and the World Wildlife Fund–Canada for detailed information on the problem in Canada. Abby SchwarzVancouver, British Columbia The article states, “Traditional medicine has been […]

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  6. Humans

    A Galling Business

    Efforts are under way to halt both poaching and inhumane farming of bears to supply bile, an ingredient used in traditional Asian medicine.

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  7. Humans

    From the October 5, 1935, issue

    A mammoth skull and losing teeth through evolution and diet.

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  8. Monarchs in the Classroom

    Learn about monarch butterflies and the “Monarchs in the Classroom” program at this Web site from the University of Minnesota. The site provides information on the life cycle of monarch butterflies and their global distribution. Research pages highlight topics of current interest. There’s also information on how to rear monarchs. Go to: http://www.monarchlab.umn.edu/

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  9. Earth

    Fertility and Pollution: Dirty air, ozone linked to sperm troubles

    Men develop lower sperm counts and produce more sperm with fragmented DNA when the air has higher levels of ozone and other pollutants.

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  10. Computing

    Untangling a Web: The Internet gets a new look

    A new mathematical model of the Internet shows that it may not be as vulnerable to centralized attacks as previous research suggested.

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  11. Humans

    Nobel prizes: The power of original thinking

    The 2005 Nobel prizes in the sciences honor a gutsy move, optical brilliance, and chemical crossovers.

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  12. Planetary Science

    Saturnian sponge

    The first close-up portrait of Saturn's icy moon Hyperion reveals a spongy-looking surface unlike that of any other known moon.

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