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  1. Humans

    NIH tightens its ethics rules

    The National Institutes of Health issued new ethics rules to keep its employees from engaging in potentially questionable relationships with organizations that might have a financial interest in NIH activities or policies.

    By Janet Raloff

  2. 19512

    Your article reminded me that taking a bird’s song and transposing it down four octaves makes it sound like a whale’s song. The opposite is also true. To hear this, go to http://www.mind.net/music/birdwhaleDemo.mp3. Todd BartonAshland, Ore. The article would imply that the only anomaly to the theory that mass equates to longevity is that large-dog […]

    By Science News
  3. Math

    Life on the Scales

    A mathematical equation helps explain life processes on all biological scales, from molecules to ecosystems.