Search Results for: Bears

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6,875 results

6,875 results for: Bears

  1. Life

    Oldest mites in amber discovered

    Two new species of arthropods found in 230-million-year-old fossilized resin show similarities to modern-day species.

    By Meghan Rosen
  2. Humans

    The man behind Sarcastic Rover

    NASA’s newest rover, Curiosity, wasn’t alone on Mars for long.

    By Nadia Drake
  3. Anthropology

    Sticks, stones and bones reveal emergence of a hunter-gatherer culture

    A cave in southern Africa was occupied by people very much like those living in the region today.

    By Meghan Rosen
  4. 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
  5. 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

  6. 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
  7. 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

  8. 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
  9. Health & Medicine

    Cartilage Creation

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

    By Nathan Seppa
  10. Life

    Stem cell treatment spurs cartilage growth

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

    By Nathan Seppa
  11. Humans

    Maya wall calendar discovered

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

    By Bruce Bower
  12. Earth

    Carbonation brings diamonds to surface

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

    By Alexandra Witze