News

  1. Paleontology

    Flexible molars made chewing champions out of duck-billed dinosaurs

    Tiny scratches in the fossilized teeth of Edmontosaurus suggest what these large herbivores ate and how they ate it.

    By Jenny Lauren Lee
  2. Life

    H1N1 racks up frequent flier miles

    Analyzing global flight paths may help researchers track pandemics, as a new study on H1N1 shows.

    By Laura Sanders
  3. Earth

    Dirty snow may bring green burst to mountain peaks

    Dust blowing in from distant deserts speeds the melting of snow and may shake up ecosystems on the slopes.

    By Susan Milius
  4. Life

    Protein protects sperm in mice

    A protein called GPX5 helps protect sperm from oxidative damage.