News

  1. Animals

    Cockroach personalities can speed or slow group decisions

    The mix of temperaments in an alarmed cluster of cockroaches changes how quickly they make group decisions.

    By Susan Milius
  2. Humans

    Baby brains undergo dramatic changes in utero

    Developing human brains experience more than 28,000 changes in a molecular process that governs gene activity.

    By Tina Hesman Saey
  3. Anthropology

    Ancient Maya bookmakers get paged in Guatemala

    New discoveries peg ritual specialists as force behind bark-paper tomes and wall murals.

    By Bruce Bower
  4. Cosmology

    Dust erases evidence for gravity wave detection

    The claimed detection of primordial gravitational waves does not hold up after taking into account galactic dust, a new analysis concludes.