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  1. Plants

    Dead pipes can still regulate plants’ water

    Physiologists say they have demonstrated for the first time that dead xylem cells in plant plumbing can control water speed.

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  2. 18901

    Since pandas produce twins “roughly half the time” and “the mother routinely selects one, and the other dies in a few days,” it seems that there is an opportunity to rear the discarded one experimentally (away from the mother). Has this been tried? It seems a waste to let one of the twins perish. Rhodes […]

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  3. The Lives of Pandas

    On a tight energy budget, newborns no bigger than chipmunks grow into roly-poly superstars.

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  4. Humans

    Explosions, not a collision, sank the Kursk

    Analyses of the shock waves recorded at seismic stations across northern Europe indicate that the Russian submarine Kursk sank due to onboard explosions, not a run-in with another vessel.