News

  1. Life

    One ocean, four (or more) killer whale species

    A new genetic analysis splits killer whales into multiple taxa.

    By Tina Hesman Saey
  2. Health & Medicine

    Taste of power goes to the head, then muscles

    Just a swish of the carbohydrates in an energy drink can increase muscle performance, a study suggests.

    By Lisa Grossman
  3. Health & Medicine

    Genetic switch makes old mice forgetful

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

    By Laura Sanders
  4. 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.