News

  1. Humans

    World of proteincraft

    Players compete to solve scientific puzzles in an online computer game.

    By Rachel Ehrenberg
  2. Life

    Sponge genes surprise

    Genome reveals that the first animals had a complex tool kit.

    By Tina Hesman Saey
  3. Health & Medicine

    Violent dreams may predict illness in advance

    A sleep disorder can precede neurodegenerative disease by decades.

    By Laura Sanders
  4. Life

    Bullied booby chicks end up OK

    In a seabird nest, abuse by older siblings doesn’t hamper fitness.

    By Susan Milius
  5. Chemistry

    Receipts a large — and largely ignored — source of BPA

    A host of small studies raises a big alarm about exposure to a hormone-mimicking chemical.