Vol. 172 No. #14
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More Stories from the October 6, 2007 issue

  1. Planetary Science

    Neptune’s balmy south pole

    Neptune's south pole is about 10°C warmer than any other place on the planet.

  2. Physics

    Hot stuff

    A plasma-based amplifier bumps up a laser's intensity by an unprecedented 20,000 times.

  3. Animals

    Tough-guy bluebirds need a frontier

    As western bluebirds recolonize Montana, the most aggressive males move in first, paving the way for milder-mannered dads to take over.

  4. Earth

    Iron to blame

    Typhoons that drench Madagascar and spill iron-rich runoff into the Indian Ocean account for that region's massive but sporadic algal blooms.

  5. Health & Medicine

    Lonely white cells

    In chronically lonely people, white blood cells show abnormal gene activity that may affect health through immune responses.

  6. Agriculture

    They fertilized with what?

    Fields fertilized with human urine yield bigger cabbages.

  7. Dangerous DNA: Genes linked to suicidal thoughts with med use

    Two gene variations mark many patients who develop suicidal thoughts when treated with widely used antidepressants.

  8. Archaeology

    Lake-Bottom Bounty: Some Arctic sediments didn’t erode during recent ice ages

    Sediments in a few lakes in northeastern Canada were not scoured away during recent ice ages, a surprising find that could prove a boon to climate researchers.

  9. No Slippery Slope: Physician-aided deaths are rare among those presumed vulnerable

    Vulnerable people such as the very old or the mentally ill do not seek out physician-assisted suicide in disproportionate numbers, as critics of the practice feared they would.

  10. Paleontology

    Just a quick bite

    Saber-toothed cats living in North America around 10,000 years ago had a much weaker bite than modern big cats.

  11. Health & Medicine

    Fueling a Flu Debate: Do vaccinations save lives among the elderly?

    Flu shots seem to prevent some deaths and limit hospitalizations for pneumonia in elderly people.

  12. Astronomy

    Match Made in Heaven: Nearby galaxies resemble faraway type

    Several nearby galaxies seem nearly identical to some of the remotest galaxies known, offering a glimpse of the era when galaxies first formed.

  13. Health & Medicine

    Shields Down: A cancer-fighting gene declines in old age

    Decline of an important anti-cancer gene could contribute to increased cancer risk among the elderly.

  14. Animals

    Crowcam: Camera on bird’s tail captures bird ingenuity

    Video cameras attached to tropical crows record the birds' use of plant stems as tools to dig out food.

  15. Astronomy

    Sputnik + 50

    The launch of Sputnik 1, 50 years ago, ushered in a scientific and technological revolution, but dreams of the human conquest of space have faded.

  16. Plants

    Stalking the Green Meat Eaters

    Pitcher plants in a New England bog hold little ecosystems in their leaves, and also act as indicators of the bog's ecological health.

  17. Humans

    Letters from the October 6, 2007, issue of Science News

    Cat scam? Oscar the cat possibly does identify dying patients (“Grim Reap Purr: Nursing home feline senses the end,” SN: 7/28/07, p. 53), but the story you printed presents anecdotal rather than scientific evidence and does not belong in a science magazine. Julie EnevoldsenSeattle, Wash. Correlation is not causation. Could it not be that, somehow, […]