News

  1. Ecosystems

    Brazil Nut Loss Looms: Harvest may be too heavy to last

    A study of 23 spots in Amazonian forests has raised the question of whether the collection of Brazil nuts—praised as a model of gentle forest use—has reached such levels that it may not be sustainable.

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  2. Tech

    Gel Bots? Vibrated goo mimics slithery motions

    The ability of soft, jellylike hydrogels to move as do snails, snakes, and inchworms may point the way to a new class of squishy robots that promise to be simple, quiet, and versatile.

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  3. Tech

    Gel Bots? Vibrated goo mimics slithery motions

    The ability of soft, jellylike hydrogels to move as do snails, snakes, and inchworms may point the way to a new class of squishy robots that promise to be simple, quiet, and versatile.