Vol. 169 No. #5
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More Stories from the February 4, 2006 issue

  1. Health & Medicine

    Diabetes most often begins in March

    A person's likelihood of developing type 2 diabetes varies seasonally and is about 50 percent higher in March than in August.

  2. Animals

    New candidates for smallest vertebrate

    Two recent scientific papers have described fish species that could, depending on the definition, be the world's smallest known vertebrate.

  3. Earth

    Warming climate will slow ocean circulation

    Later this century, rising concentrations of greenhouse gases in Earth's atmosphere could slow the ocean currents that bring warm waters to the North Atlantic.

  4. Health & Medicine

    Tumor’s border cells told to leave

    Cells on a tumor's outer layer that touch healthy tissue receive a chemical signal that sends them wandering away.

  5. Health & Medicine

    Rotavirus vaccines pass big safety tests

    The largest industry-funded medical trials in history have found that two new vaccines are both safe and effective against life-threatening childhood diarrhea caused by rotavirus.

  6. Earth

    Manganese can make water toxic

    Drinking water contaminated with manganese can subtly limit a child's intellectual development.

  7. Earth

    2005 was warmest year on record

    Last year's global average temperature was the warmest since scientists began compiling records in the late 1800s.

  8. Astronomy

    Galactic cannibalism

    A highly elongated group of stars is most likely a dwarf galaxy that is being gobbled up by the Milky Way.

  9. Animals

    Poor Devils: Critters’ fights transmit cancer

    Tasmanian devils transmit cancer cells when they bite each other during routine squabbles, producing lesions that are often fatal.

  10. Health & Medicine

    Self Help: Stem cells rescue lupus patients

    By rebuilding a patient's immune system using his or her own stem cells, doctors can reverse of the course of lupus in severely ill patients.

  11. Physics

    Smashing Success: Accelerator gets cool upgrade

    A novel scheme for increasing the number of collisions in particle accelerators has boosted the performance of the world's highest-energy collider.

  12. Good for Something: Prion protein maintains stem cells

    The same protein that, in an altered shape, causes mad cow disease maintains the body's cache of blood-producing stem cells.

  13. Earth

    Cold and Deep: Antarctica’s Lake Vostok has two big neighbors

    Trapped beneath Antarctica's kilometers-thick ice sheet are two immense bodies of water that may harbor ecosystems that have been isolated for millions of years.

  14. Health & Medicine

    Protecting People from a Terrifying Toxin: Vaccine stimulates immune response against ricin

    In its first test in people, a vaccine against the toxin ricin appears safe and generates antibodies that are expected to be protective against the potential bioterrorism agent.

  15. Animals

    Bird-Safe Rx: Alternative drug won’t kill India’s vultures

    Researchers have found an alternative to the livestock drug that has accidentally poisoned a majority of the vultures in India and neighboring countries.

  16. Tech

    Microbial Moxie

    Microbial fuel cells, which take advantage of the fact that some microbes generate electricity when they break down organic matter, could one day power remote sensors, wastewater-treatment plants, and portable devices.

  17. Earth

    A Little Less Green?

    Emerging data indicate that use of pyrethroid pesticides, even by home owners, poses significant environmental risks.

  18. Humans

    Letters from the February 4, 2006, issue of Science News

    Double trouble? “Sleep apnea could signal greater danger” (SN: 11/26/05, p. 349) says that “twice as many … with sleep apnea had a stroke or died of that or another cause. …” This sounds serious, but your readers can’t correctly assign importance to “twice as many” because you omit numbers of deaths. David KollasTolland, Conn. […]