News

  1. Health & Medicine

    Keep Out: Treated mosquito nets limit child deaths

    Mosquito nets treated with insecticides decrease death rates among children in Kenya's malarial zones.

    By Nathan Seppa
  2. Paleontology

    Unexpected Archive: Mammoth hair yields ancient DNA

    Hair from ancient mammoths contains enough genetic material to permit reconstruction of parts of the animal's genome.

    By Sid Perkins
  3. Health & Medicine

    Distracted? Tea might help your focus

    An amino acid in tea combines with the brew's caffeine to enliven brain cells that aid concentration.

    By Janet Raloff
  4. Health & Medicine

    Tea compound aids dying brain cells

    A constituent of green tea rescues brain cells damaged in a way that mimics the effect of Parkinson's disease.