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  1. Humans

    Letters from the August 11, 2007, issue of Science News

    Sum kids While testing was done on 5- or 6-year-old children (“Take a Number: Kids show math insights without instruction,” SN: 6/2/07, p. 341), it would be interesting to see if this intuitive skill persists after these students are exposed to standard mathematical instruction in the higher grades. I suspect that the answer will be […]

    By Science News
  2. Humans

    From the July 31, 1937, issue

    Giant dragonflies from the Carboniferous period, a dust cloud obscuring stars near the sky's north pole, and a list of 13 inventions predicted to have great social significance.

    By Science News
  3. Ecosystems

    Biota Behaving Badly

    Members of an established ecosystem develop a sense of balance, usually permitting at least limited biodiversity and a stable structure.