Vol. 171 No. #13

More Stories from the March 31, 2007 issue

  1. Health & Medicine

    Working in a cotton mill has bright side

    People who work amid bales of raw cotton are less likely to get lung cancer than are people in the general population, a study of Chinese women indicates. While past research has shown that workers in a cotton mill tend to develop shortness of breath, chronic cough, and other health problems, some scientists also noted […]

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  2. Plants

    Old plants were lost in the grass

    An obscure family of plants long thought to be relatives of grasses turns out to represent one of the most ancient surviving lineages of flowering plants.

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  3. How smart are amoebas?

    Amoebas seem to possess a rudimentary form of memory that keeps them from walking around in circles.

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  4. Math

    Big prize for unlikely research

    A New York University mathematician has won one of the highest prizes in mathematics for figuring out the likelihood of unlikely events.

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  5. Planetary Science

    Radar probes frozen water at Martian pole

    If all the frozen water stored near the south pole of Mars suddenly melted, it would make a planetwide ocean 11 meters deep.

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  6. Paleontology

    Birds’ ancestors had small genomes too

    Among mammals, reptiles, and related animals, today's birds have the smallest genomes, and the dinosaurs that gave rise to birds had small genomes as well.

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  7. Physics

    Meet me at 79°50′ N, 56° W

    Violations of Newtonian physics could explain away dark matter.

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  8. Humans

    Chasing money for science

    Stagnant funding for the National Institutes of Health is forcing scientists to downsize their labs and abandon some of their most promising work.

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  9. Health & Medicine

    Asthma Zap: Heated scope reduces attacks

    A new tool cools asthma by heating lung tissue to kill overgrown smooth muscle in airways, a hallmark of the disease.

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  10. Astronomy

    Late Bloomer: Hubble studies once-dormant galaxy

    A wispy dwarf galaxy called Leo A has the potential to change the way astronomers build theoretical models of galaxy evolution.

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  11. Bipolar Surprise: Mood disorder endures antidepressant setback

    Severe depression in patients with bipolar disorder responds no better to a combination of antidepressants and mood-stabilizing drugs than to mood stabilizers alone.

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  12. Family Feud: Genetic arms race between parents benefits male offspring in a surprising way

    A gene in mice that benefits the father at the mother's expense appears to help offspring of both sexes.

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  13. Animals

    Too Few Jaws: Shark declines let rays overgraze scallops

    A shortage of big sharks on the U.S. East Coast is letting their prey flourish, and that prey is going hog wild, demolishing bay scallop populations.

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  14. Tech

    Is Your Phone Out of Juice? Biological fuel cell turns drinks into power

    A new type of fuel cell uses natural enzymes to produce small amounts of electricity from sugar.

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  15. Earth

    Pollution Fallout: Are unattractive males Great-gram’s fault?

    Pollutant exposures in rodents can have behavioral repercussions that persist generation after generation.

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  16. Animals

    Honey, I Ate the Kids

    Some of the most devoted parents in the animal kingdom routinely devour some of their own children.

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  17. Earth

    Fits and Starts

    New data identify some factors that influence the highly variable flow rates of ice streams, the megaglaciers that carry most of Antarctica's ice to the sea.

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  18. Humans

    Letters from the March 31, 2007, issue of Science News

    On the hoof Do cows and other domestic-herd animals really emit more methane than bison and other wild-herd animals emitted before people came along? Do grass, alfalfa, and other pasture plants remove less carbon dioxide than do forests? There were open grasslands before pastures replaced some forests. I hope the people who are researching these […]

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