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  1. Trichomoniasis-causing organism is sequenced

    Scientists have taken a first read of the genetic sequence of the organism responsible for a sexually transmitted infection called trichomoniasis.

    By Christen Brownlee
  2. Earth

    Aquatic Non-Scents

    Many common pollutants appear to be jeopardizing the survival of fish and other aquatic species by blunting their sense of smell.

    By Janet Raloff

  3. Perchance to Hibernate

    As scientists work to unravel the secrets of mammalian hibernation, they're eyeing medical applications that could aid wounded soldiers, stroke victims, and transplant recipients, among others.

    By Ben Harder
  4. Humans

    Letters from the January 27, 2007, issue of Science News

    Circumcision circumspection Concerning “More Evidence of Protection: Circumcision reduces STD risk in men” (SN: 11/18/06, p.