News

  1. Humans

    Ancient blades served as early weapons

    African find reveals complex toolmaking 71,000 years ago.

    By Erin Wayman
  2. Health & Medicine

    Your brain on speed dating

    Activity in two regions helps calculate compatibility with potential mates.

    By Laura Sanders
  3. Life

    A little radiation is good for mice

    Low doses of radioactivity led to healthier pups.

    By Tina Hesman Saey
  4. Life

    Cancer cells self-destruct in blind mole rats

    Underground rodents evolved a way to zap mutating tissue.

    By Tina Hesman Saey
  5. Life

    Trunk in cheek, elephant mimics Korean

    Novel posture lets animal imitate sounds of human words.