News

  1. Health & Medicine

    Genetic switch makes old mice forgetful

    Reversing a chemical change restored the animals’ memory-making ability.

    By Laura Sanders
  2. Life

    Neandertal genome yields evidence of interbreeding with humans

    After years of looking, geneticists are shocked to find that 1 percent to 4 percent of DNA in people from Europe and Asia is inherited from Neandertals.

    By Tina Hesman Saey
  3. Chemistry

    Decon Green can clean up the most toxic messes, developers claim

    A new decontaminant could be a more benign alternative for cleaning up after chemical and biological accidents.

    By Rachel Ehrenberg
  4. Life

    Undereducated immune cells get aggressive with HIV

    Scientists discover a mechanism that makes some people resistant to infection with the AIDS virus.