News

  1. Animals

    Oops. Woodpecker raps were actually gunshots

    The knock-knock noises recorded last winter that raised hopes for rediscovering the long-lost ivory-billed woodpecker in Louisiana turn out to have been gunshots instead of bird noises.

    By Susan Milius
  2. Tech

    Making a Little Impression: New chip-making method may mold the industry

    A simple mechanical means of embossing silicon may offer an alternative to conventional chip-making methods.

    By Peter Weiss
  3. Health & Medicine

    Stem Cell Gain: Bone marrow cells seem to have what it takes

    Tests show that a rodent bone marrow cell similar to one found in people acts as a multipurpose stem cell, much as embryonic stem cells do.