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  1. Life

    Bicoastal Atlantic bluefin tuna

    Mediterranean and western Atlantic bluefin tuna spend more time in mixed groups than previously thought, suggesting management strategies need to be revisited.

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  2. Chemistry

    Fluorescent bulbs offer mercury advantage

    Featured blog: Switching to light bulbs that contain mercury might, surprisingly, reduce overall mercury releases to the environment. Plus, what to do when you break your fluorescent bulb.

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  3. Physics

    Diamonds engage at the nano scale

    Manipulating the quantum properties of diamond impurities makes diamond into a kind of microscope that could, for example, reveal the inner working of cells.

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  4. Health & Medicine

    Don’t forget diet composition

    Caloric restriction, an antiaging technique, fails to lower levels of IGF-1, a growth factor that, in high amounts, is linked to cancer in humans. But cutting protein along with calories does decrease IGF-1.

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  5. Life

    Old fish, new fish, red fish, blue fish

    A difference in vision in cichlids in Lake Victoria could be pushing a species to split into two.

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  6. Health & Medicine

    On Following the Money

    Judge medical writers on issues that matter most in a given story, not just on what's easiest to quantify.

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  7. Health & Medicine

    Pregnancy curiosity

    Asian-Caucasian couples having children face slightly increased risks of pregnancy complications.

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  8. Health & Medicine

    You Choose: Vioxx vs Rofecoxib

    Physicians weigh in on how reporters refer to certain medications.

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  9. Health & Medicine

    Anthrax vaccine makeover

    Revamped anthrax vaccination regimen eases some side effects that have hampered the vaccine’s acceptance.

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  10. Humans

    Machu Picchu’s far-flung residents

    A new chemical analysis of skeletons at the Inca site of Machu Picchu strengthens the idea that the royal estate was maintained by retainers who had been uprooted from homes throughout the empire.

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  11. Humans

    Second-Tier Presidential Debates

    Here are thematic debates, minus the candidates, that you can take in via your computer.

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  12. Health & Medicine

    Moms: One Solution to Tainted Milk

    Tainted infant formulas point to a problem in the way society values moms.

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