Search Results for: Bears

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6,859 results

6,859 results for: Bears

  1. Humans

    Apocalypse, not so fast

    Guatemalan find suggests mention of a date far in the future served a Maya king’s immediate needs.

    By Bruce Bower
  2. Archaeology

    Oldest pottery comes from Chinese cave

    New dates show that East Asian hunter-gatherers fired up cooking vessels 20,000 years ago.

    By Bruce Bower

  3. Frozen Planet: A World Beyond Imagination by Alastair Fothergill and Vanessa Berlowitz

    Journey with four polar denizens — polar bear, Arctic fox, Adélie penguin and wandering albatross — through seasonal changes in this companion to a BBC television series. Firefly Books, 2011, 312 p., $39.95

    By Science News
  4. Health & Medicine

    Ovulation spurred by newfound semen ingredient

    A common growth-boosting protein may act as a pregnancy-protecting hormone in humans.

    By Meghan Rosen

  5. 2011 Science News of the Year: Life

    Multicellular life from a test tube In less than two months, yeast in a test tube evolved from single-celled life to bristly multicellular structures. The new, snowflakelike forms act like multicellular organisms, reproducing by splitting when they reach large sizes and evolving further in response to harsh conditions, William Ratcliff of the University of Minnesota, […]

    By Science News
  6. Health & Medicine

    Cartilage Creation

    New joint tissue could keep people moving, reducing need for knee or hip replacements.

    By Nathan Seppa
  7. Life

    Stem cell treatment spurs cartilage growth

    A small molecule called kartogenin prompts the manufacture of lost connective tissue in mice.

    By Nathan Seppa
  8. Humans

    Maya wall calendar discovered

    Classic-era structure displays rare calculations of lunar and planetary cycles.

    By Bruce Bower
  9. Earth

    Carbonation brings diamonds to surface

    Chemical reactions deep inside the Earth fuel magma’s gem-laden upward journey.

    By Alexandra Witze
  10. Space

    More like Faux-malhaut b

    The Spitzer Space Telescope fails to find a visible planet circling where Hubble saw one four years ago.

    By Nadia Drake

  11. The Great White Bear: A Natural and Unnatural History of the Polar Bear by Kieran Mulvaney

    Starting with the fact that polar bears have black skin, this book offers surprises and up-to-date information about the Arctic’s iconic top predator. Houghton Mifflin Harcourt, 2011, 251 p., $26.

    By Science News
  12. Life

    Carnivores can lose sweet genes

    A gene involved in taste detection has glitches in some, but not all, highly carnivorous mammals.

    By Susan Milius