News

  1. Ecosystems

    Slave ants rebel

    Species vulnerable to enslavement may evolve ways to fight their captors.

    By Susan Milius
  2. Ecosystems

    Coastal dead zones expanding

    The number of coastal areas known as dead zones is on the rise. A new tally reports more than 400 of the oxygen starved regions worldwide.

    By Rachel Ehrenberg
  3. Life

    Bacteria use poison to make food

    Bacteria from Mono Lake conduct photosynthesis with arsenic, a form of the process that may be a relic of life on Earth before the advent of an oxygen atmosphere.

    By Tina Hesman Saey
  4. Health & Medicine

    Heart to heart

    Successful heart transplant experiment in infants draws attention to debate on defining death of organ donors.