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  1. Humans

    From the October 23, 1937, issue

    Soviet hydroelectricity powers electric farm equipment, breeding programs create rats with cancer resistance and rabbits with an extra rib, and artificial fertilization is made to work in fruit flies.

    By Science News
  2. Animals

    Smells Funny: Fish schools break up over body odor

    Just an hour's swim in slightly contaminated water can give a fish such bad body odor that its schoolmates shun it.

    By Susan Milius
  3. Anthropology

    Not So Clear-Cut: Soil erosion may not have led to Mayan downfall

    Hand-planted maize, beans, and squash sustained the Mayans for millennia, until their culture collapsed about 1,100 years ago. Some researchers have suggested that the Mayans’ very success in turning forests into farmland led to soil erosion that made farming increasingly difficult and eventually caused their downfall.