Feature

  1. Health & Medicine

    Calling Death’s Bluff

    New methods of assessing a person's risk of sudden death due to a heart arrhythmia may enable doctors to better identify which patients need to receive an implanted defibrillator.

    By Ben Harder
  2. Animals

    Battle of the Hermaphrodites

    A biologist argues that combining the sexes can actually make gender wars worse.

    By Susan Milius
  3. Health & Medicine

    Pick Your Antipoison

    New research may soon make treating venomous bites and stings less expensive, less risky, and more effective.

    By Christen Brownlee
  4. Astronomy

    Too Much Deuterium?

    A new study appears to solve a 35-year-old puzzle about the distribution of deuterium in the Milky Way, but poses new questions about how stars and galaxies are formed.