News

  1. 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
  2. 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
  3. 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.

    By Janet Raloff
  4. Health & Medicine

    Malaria’s sweet spot

    The malaria parasite's reliance on a sugar in the gut of mosquitoes may offer a way to block the disease's transmission.