Uncategorized

  1. Earth

    Global warming may already be a killer

    Earth's rising temperatures may be a precipitating factor in the extinctions of dozens of tropical frog species.

    By Christen Brownlee
  2. Tech

    Artificial Animalcules

    Advances that include the first swimming micromachine and novel designs for similar devices are deepening scientists' understanding of the bizarre world of microscale liquids.

    By Peter Weiss

  3. 19646

    Perhaps in addition to using a friendly strain of Clostridium difficile to crowd out the disease-causing variety in the gut, other species of benign bacteria could be reintroduced at the same time. This might be done inexpensively using “probiotic” bacterial cultures already being sold by some health food companies. Michael DunphyNaperville, Ill.