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  1. Sharp rise noted in meds for youths

    Antipsychotic-drug treatment of children and teenagers seen by office-based physicians increased dramatically between 1993 and 2002.

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  2. Earth

    Gasp! Ozone limits don’t protect babies

    In healthy infants, even ozone concentrations well below those allowed by federal law trigger asthmalike symptoms.

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  3. Astronomy

    Spewing superdust

    Astronomers have identified a type of supernova as the main source of space dust.

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  4. 19691

    Tiktaalik may not have left the water by choice, to avoid predators, or to get more oxygen. Instead, it might have found itself left behind on a muddy floodplain each time waters receded with the tide. Tiktaalik ‘s “limbs” were probably first developed to survive in an environment that required bracing and stabilizing against currents, […]

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  5. Paleontology

    Amphibious Ancestors

    Newly discovered fossils from Greenland, as well as a reexamination of those of previously known creatures, are providing researchers with additional insights into ancient vertebrates' move from water to land.

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  6. Growing Up Online

    New studies probe some of the many ways, both good and bad, that children and teenagers use the Internet and adapt to online communication.

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  7. Math

    Dropping Lowest Scores

    Determining which scores to drop when computing a final grade that is to a student's greatest advantage can be tricky. For more math, visit the MathTrek blog.

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  8. Humans

    From the June 6, 1936, issue

    Young robins ready to solo, threats from space, and molecule models.

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  9. Health & Medicine

    Medicine in the News

    This Web site from the University of Pennsylvania School of Medicine serves as a clearinghouse for timely medical information. It provides news stories, along with “teaching brief” articles that aim to help clinicians and consumers understand the implications of new discoveries and developments in the medical world. Go to: http://www.medpagetoday.com/

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  10. Earth

    Toxic Tides: Another reason to worry about hurricanes

    The hurricanes that struck Florida in the summer of 2004 also may have triggered an intense, widespread, and long-lasting red tide that afflicted the state's west-central coast throughout 2005.

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  11. 19688

    Reading the June 10 issue, I was prepared to catch the Simpsonesque spoof (blunder?) in this article. Perhaps the creature had up to 748 legs, or possibly up to 752 legs, but not “up to 750 legs.” David ClarkLititz, Pa. Researcher Paul Marek of East Carolina University explains that Illacme plenipes has four legs per […]

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  12. Animals

    Leggiest Animal: Champ millipede located after 79-year gap

    A millipede species that can grow up to 750 legs has turned up in California after decades with no sightings.

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