News

  1. Life

    How bearded dragons switch their sex

    RNA editing might affect reptile sex determination at temperature extremes.

    By Laurel Hamers
  2. Health & Medicine

    New heart attack treatment uses photosynthetic bacteria to make oxygen

    Photosynthetic bacteria can produce oxygen to keep rat heart muscles healthy after a heart attack.

    By Tina Hesman Saey
  3. Life

    Ancient DNA shakes up the elephant family tree

    DNA from straight-tusked elephant fossils is forcing scientists to reconsider the history of elephant evolution.

    By Maria Temming
  4. Health & Medicine

    New kind of ‘tan in a bottle’ may one day protect against skin cancer

    A drug for activating melanin production without using ultraviolet radiation works in human skin samples.