Search Results for: Bears

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6,775 results

6,775 results for: Bears

  1. Health & Medicine

    Everyone poops his or her own viruses

    The viral denizens of a person’s intestines are unique and don’t change much over time, a study suggests.

    By Tina Hesman Saey

  2. Young’uns adrift on the sea

    Scientists try to identify and track elusive larvae in a boundless ocean.

    By Susan Milius
  3. Humans

    BPA induces sterility in roundworms

    Bisphenol A does a real number on the genes responsible for successful reproduction in a 1-millimeter-long soil-dwelling roundworm. And that suggests BPA might pose similar risks to people because geneticists are finding that this tiny critter can be a remarkably useful “lab rat” — predicting impacts in mammals, including us.

    By Janet Raloff
  4. Space

    All flash, no crash

    New Hubble Space Telescope images confirm that Jupiter emerged unscathed from an impactor that created a fireball above the planet’s cloud tops on June 3. The new images indicate that the object exploded as a meteor in the planet’s upper atmosphere rather than plunging into the atmosphere

    By Ron Cowen
  5. Tech

    Heavier crudes, heavier footprints

    BLOG: Refining heavy oils and tar sands could greatly exaggerate the greenhouse gases associated with fossil-fuel use, a new study finds.

    By Janet Raloff
  6. Science & Society

    2010 Nobels recognize potential of basic science to shape the world

    Prizes go to IVF, graphene and ‘carbon chemistry at its best’

    By Nathan Seppa, Laura Sanders and Rachel Ehrenberg
  7. Animals

    Wolverine: Climate warming threatens comeback

    BLOG: New data point to unexpected sociability and filial behavior in carnivore.

    By Janet Raloff
  8. Space

    Mars shows signs of recent activity

    The surface of Mars had abundant liquid water as well as volcanic activity during the past 100 million years, a new study of the Martian atmosphere suggests.

    By Ron Cowen
  9. Health & Medicine

    Gut bacteria reflect dietary differences

    A comparison of African and European children concludes that high-fiber, low-fat diets cultivate healthier intestinal microflora.

    By Gwyneth Dickey

  10. Black Holes in the Bathtub

    Scientists observe Hawking radiation in unexpected materials.

    By Marissa Cevallos
  11. Anthropology

    ‘Java Man’ takes age to extremes

    New dating of Indonesian strata has produced unexpected results.

    By Bruce Bower
  12. Animals

    Controversial polar bear rule stands

    Creature’s plight remains separate from decisions on greenhouse gas emissions.

    By Susan Milius