Uncategorized

  1. Ecosystems

    Males live longer with all-year mating

    Male butterflies live longer in Madeira, where females are available year-round, than in Sweden, where females mature in one burst.

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  2. Plants

    Why tulips can’t dance

    An elliptical stem gives daffodils an unusual liveliness in the wind compared with tulips.

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  3. 19101

    Hickling and Lee, whose work was described in this article, might consider a piezoelectric crystal as a point-source speaker. One would need to figure out a proper coupling-to-substrate scheme to separate the acoustic and substrate vibrational pathways. Yves KrausMansfield Center, Conn.

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  4. Animals

    When Ants Squeak

    In the past 20 years, researchers studying sound communication in ants have discovered a sort of ant-ernet, zinging with messages about lost relatives, great food, free rides for hitchhikers, caterpillars in search of ant partners, and impending doom.

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  5. Dendrite decline in schizophrenia

    Cell connections in a part of the brain's frontal lobe appear to dwindle in people with schizophrenia.

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  6. Keys to expertise in the brain

    A brain region linked to face recognition may foster expertise at identifying items in any category a person strives to master.

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  7. Astronomy

    Milky Way gets a new layer

    Astronomers propose that 150 billion corpses of sunlike stars may blanket the visible disk of the galaxy.

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  8. Chemistry

    Questions of Origin

    Two new studies renew controversy about the authenticity of a map that may be the first depiction of North America.

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  9. Materials Science

    Vision Quest

    Increasing numbers of people with less-than-perfect vision can now wear contact lenses, thanks to innovations in lens design and materials.

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  10. Animals

    Bees log flight distances, train with maps

    After decades of work, scientists crack two problems of how bees navigate: reading bee odometers and mapping training flights.

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  11. Earth

    DDT treatment turns male fish into mothers

    Injecting into fish eggs an estrogen-mimicking form of the pesticide DDT transforms genetically male medaka fish into apparent females able to lay eggs that produce young.

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  12. Chemistry

    Tums of the Sea

    Ocean scientists question whether the seas can handle rising carbon dioxide concentrations.

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