News

  1. Animals

    Owls use tools: Dung is lure for beetles

    Burrowing owls' habit of bringing mammal dung to their burrows attracts edible beetles and counts as form of tool use.

    By Susan Milius
  2. Health & Medicine

    Immune reaction to poison gas brings delayed effects

    Researchers have a new understanding of why some survivors of carbon monoxide poisoning later develop concentration problems, personality changes, or sensory impairments.

    By Ben Harder
  3. Tech

    Tiny Timepiece: Atomic clock could fit almost anywhere

    Physicists have shrunk the high-tech heart of an atomic clock to the size of a rice grain.

    By Peter Weiss
  4. Health & Medicine

    Scanning Risk: Whole-body CT exams may increase cancer

    Adults who routinely get whole-body CT scans without medical cause are exposing themselves to doses of radiation that may increase their risk of dying from cancer.