Search Results for: Butterflies

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1,040 results

1,040 results for: Butterflies

  1. Life

    DNA to flutter by

    The complete genetic instruction book for making monarch butterflies contains information about how the insects manage their long migration to Mexico.

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  2. Earth

    Bt corn pollen can hurt monarchs

    A second test of a strain of corn genetically engineered to make its own insecticide finds potential for harm to monarch butterfly caterpillars.

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  3. Ecosystems

    Fly may be depleting U.S. giant silk moths

    A parasitic fly introduced to fight gypsy moths starting in 1906 may be an overlooked factor in the declines of giant silk moths.

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  4. 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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  5. Agriculture

    Bt corn variety OK for black swallowtails

    The first published field study of butterflies and genetically altered corn finds no harm to black swallowtail caterpillars from a common corn variety.

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  6. Earth

    Bt Corn Risk to Monarchs Is ‘Negligible’

    A much-anticipated report states that the most commonly planted forms of genetically engineered Bt corn pose only a "negligible" risk to monarch butterfly populations.

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  7. Animals

    Poison birds copy ‘don’t touch’ feathers

    A subspecies of one of New Guinea's poisonous pitohui birds may be mimicking a toxic neighbor, according to a new genetic analysis.

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  8. Ecosystems

    Climate Upsets: Big model predicts many new neighbors

    The biggest effects of climate change during the next 50 years may not be extinctions but major reshuffling of the species in local communities.

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  9. Animals

    No Tickling: Common caterpillars deploy defensive hair

    The caterpillars of the European cabbage butterfly have a chemical defense system that scientists haven't documented before.

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  10. Animals

    Sniff . . . Pow! Wasps use chemicals to start ant brawls

    Wasps sneak around in ant colonies thanks to chemicals that send the ants into a distracting frenzy of fighting among themselves.

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  11. Animals

    Male butterflies are driven to drink

    Monarch butterflies that winter in California, especially males that had a demanding day, search out dewdrops as a water source.

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  12. Ecosystems

    State of U.S. Agro-ecosystems

    About one-quarter of the United States’ land cover, excluding Alaska, is farmed–some 430 million to 500 million acres. A massive new project has just assessed this and other food-producing environments, such as coastal waters, fresh waters, and rangelands, to tally factors contributing to health. Released on Sept. 24, it indicates that most ecosystems are undergoing […]

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