News

  1. Ecosystems

    Frogs leapt before they landed

    Jumping preceded mastery of the touchdown in amphibian evolution, a new study suggests.

    By Sid Perkins

  2. Among stars, heavyweight champ

    Stellar record-holder weighs in at 265 times mass of sun.

    By Ron Cowen
  3. Paleontology

    Oldest dog debated

    A fossil jaw may, or may not, come from the oldest known example of man’s best friend.

    By Bruce Bower
  4. Planetary Science

    Hole from on high

    Researchers discover a fresh meteorite impact crater using Google Earth.

    By Sid Perkins
  5. Ecosystems

    Gut first

    A crawling caterpillar’s gut moves forward before the rest of its body does.