News

  1. Humans

    Y chromosome analysis moves Adam closer to Eve

    A pair of genetic studies has pushed back age of men's most recent common ancestor.

    By Erin Wayman
  2. Neuroscience

    Camping resets internal clock

    After a week in the wild, people went to bed and got up earlier.

    By Meghan Rosen
  3. Health & Medicine

    Going out to lunch zaps mental focus

    Sharing a midday meal with friends could lead later to errors at work.

    By Jessica Shugart
  4. Animals

    Oxygen boost aided carnivore evolution in Cambrian explosion

    Atmospheric change and rise of predators caused burst in complexity of life.

    By Erin Wayman
  5. Health & Medicine

    Full moon may mean less sleep

    Slumber waxes and wanes along with lunar rhythm, researchers find with people sleeping in windowless lab.