Notebook

  1. Tech

    Sheath helps ‘aqua-hamster’ survive underwater

    Scientists hoped a membrane invented in 1964 would let submarines pull air from seawater.

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  2. Animals

    New frog species discovered in New York City

    A new frog species lives up and down the East Coast. It was discovered when ecologists realized its ‘ribbit’ was distinct from the calls of a lookalike species.

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  3. Paleontology

    Ancient jellyfish suffered strange, sandy death

    A fossil hints at the unusual series of events that led to an ancient jellyfish’s preservation and may offer clues to understanding odd sand deposits found elsewhere.

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  4. Tech

    New microscope gives clear view inside cells

    By splitting beams of light, a new microscopy technique can capture activity inside a cell.