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  1. Health & Medicine

    Body & Brain

    A genetic cause for small brains, heart links to HIV and calcium, and more in this week’s news.

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  2. Life

    Zap! More fish

    An upgraded brain underlies the wide diversity in a family of electric fish, scientists say.

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  3. Earth

    Currents reach deep for seafloor larvae

    Surface waters circulate more than a mile down, transporting organisms between distant ocean-bottom habitats.

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  4. Tech

    Nanotubes coming to a screen near you

    New technology promises brighter, bigger display screens that use less energy.

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  5. Life

    Antarctic humpbacks make a krill killing

    Late-arriving sea ice enhances crustacean feast for whales, but the bounty may be fleeting.