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  1. Animals

    Why Play Dead?

    Common wisdom dictates that playing dead discourages predators, but researchers are now thinking harder about how, or whether, that strategy really works.

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  2. Humans

    Letters from the October 28, 2006, issue of Science News

    Slow down a minute “Braking news: Disks slow down stars” (SN: 8/12/06, p. 109) says that a magnetic linkage between spinning stars and the charged particles in the dusty disks that surround them slowed the spin of the stars, but says nothing about its effect on the disk. The law of conservation of angular momentum […]

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  3. Math

    The Great Tile Debate

    For subway flooring, why switch from hexagonal to square tiles?

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  4. Humans

    From the October 17, 1936, issue

    A million volts to fight cancer, relief from migraines, and differing sensitivity to sound.