News

  1. Math

    Spinning to a rolling stop

    Air viscosity makes the rolling speed of a spinning, tipping coin go up as its energy goes down until the coin suddenly stops.

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  2. Health & Medicine

    A different GI link to colon cancers

    Diets rich in sweets and other quickly digested carbohydrates appear to increase an individual's risk of developing colon cancer.

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  3. Health & Medicine

    Berry promising anticancer prospects

    Cranberry products can retard the growth and spread of breast cancer in rodents.

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  4. Disabled genes dull sense of smell

    Mutated genes may explain why humans have a poor sense of smell.

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  5. Genes, genes, and more genes

    Scientists have almost finished sequencing the genes of rice and of a man.

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  6. Ecosystems

    Insects, pollen, seeds travel wildlife corridors

    Strips of habitat boost insect movement, plant pollination, and seed dispersal among patches of the same ecosystem.

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  7. Paleontology

    Trackway site shows dinosaur on the go

    Scientists say that a sediment-filled, bathtub-shape depression found at one of North America's most significant dinosaur trackway sites is the first recognized evidence of urination in dinosaurs.

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  8. Paleontology

    Curved claws hint at pterosaur habits

    A study of the claws of flying reptiles known as pterosaurs suggests that some of the creatures may have walked like present-day herons and used their wing fingers to hold prey.

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  9. Paleontology

    Mosasaurs were born at sea, not in safe harbors

    Newly discovered fossils of prehistoric aquatic reptiles known as mosasaurs suggest that the creatures gave birth in midocean rather than in near-shore sanctuaries as previously suspected.

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  10. Paleontology

    Stegosaur tails packed a punch

    A mathematical analysis of a fossil stegosaur's bones leaves little doubt that the creature's spike-studded tail was an effective defense against predators.

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  11. Chemistry

    Dipping deeper into acid

    New experiments reveal how a molecule of acid dissolves in water.

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  12. Astronomy

    News flash: Earth still has only one moon

    An object discovered orbiting Earth in early September isn't a moon but something much more mundane—an upper stage of a rocket that was used in the Apollo 12 mission to the moon.

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