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  1. Paleontology

    Ancient fish with killer bite

    Dunkleosteus clamped down on prey with three-quarters-of-a-ton bite force.

    By Sid Perkins
  2. Humans

    Science News at ISEF 2009

    Highlights from the 2009 Intel Science and Engineering Fair in Reno, Nev.

    By Science News
  3. Space

    Last Hubble rendezvous

    During five successful space walks, astronauts repaired and rejuvenated the Hubble Space Telescope.

    By Ron Cowen
  4. Archaeology

    Stone Age figurine has contentious origins

    A new study suggests that an ivory female figurine from Germany dates to at least 35,000 years ago, but that conclusion has sparked debate over the Stone Age origins of figurative art.

    By Bruce Bower
  5. Life

    It’s not their dirty mouths

    Komodo dragons kill prey with venom, not oral bacteria, study suggests.