News

  1. Animals

    Male bats primp daily for odor display

    For the first time, scientists have described the daily routine of male sac-winged bats gathering to freshen the odor pouches on their wings.

    By Susan Milius
  2. Health & Medicine

    Stem cells repair rat spinal cord damage

    Using embryonic stem cells from mice, researchers restored some movement in paralyzed rats that had undergone a crippling spinal injury.

    By Nathan Seppa
  3. Physics

    Time’s arrow may make U-turns in universe

    Time may run backwards for isolated chunks of matter in our universe and that reversed state could be probed gently from the forward-going realm without disturbing the time arrow.

    By Peter Weiss
  4. Chemistry

    Antibiotics may become harder to resist

    Drug designers have developed new tactics to make it harder for bacteria to survive exposure to antibiotics.