News

  1. Animals

    Ear for Killers: Seals discern foes’ from neighbor-whales’ calls

    Harbor seals eavesdrop on killer whales and can tell the harmless neighborhood fish eaters from roving gangs with a taste for fresh seal.

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  2. Thoughtful Lessons: Training may enhance intellect in elderly

    The largest study of its kind finds that a brief training course in memory, reasoning, or visual concentration boosts performance on laboratory tests of these cognitive skills among physically healthy elderly people.

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  3. Earth

    Shaked Alaska: A sleepy fault wakes and reveals new links

    One of the most powerful earthquakes ever recorded on U.S. land shook south-central Alaska on Nov. 3, revealing activity along the Denali fault.

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  4. Physics

    Speedy impacts send microwave distress calls

    Laboratory smash-ups mimicking those between fast-moving space debris and satellites appear to emit microwave bursts, suggesting that microwave detectors might someday prove useful for monitoring the health of spacecraft.

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  5. Animals

    Tadpoles kill by supersuction

    A high-speed video shows tiny African tadpoles that catch their prey in a manner unlike that used by any other frog larvae: by shooting out a tubular mouth for superfast suction.

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  6. Health & Medicine

    Immune protein may stall HIV

    People who have HIV but don't progress to AIDS make extra perforin, a protein that helps kill infected cells.

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  7. Planetary Science

    Europa’s freckles

    Reddish spots and shallow pits that pepper the surface of Jupiter's moon Europa may mark regions where warmer and less dense ice percolates to the surface.

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  8. Planetary Science

    Another moon for Uranus

    Astronomers have confirmed the existence of the 21st moon known to be orbiting Uranus.

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  9. Health & Medicine

    Duct tape sticks it to warts

    Treating a wart with a covering of duct tape seems to be more effective—and less painful—than removing the wart by freezing it with liquid nitrogen.

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  10. Earth

    Pesticides block male hormones

    Some common pesticides can block the ability of androgens, male sex hormones, to trigger normal gene activities.

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  11. Earth

    Weed killer feminizes fish

    The weed killer atrazine can turn normally hermaphroditic fish into females, a new study shows.

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  12. Earth

    Is a faster commute worth it?

    Living near busy roads is bad for your heart and lungs.

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