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  1. Chemistry

    Wanted: Crime-solving bacteria and body odor

    Forensic investigators are moving past old-school sleuthing to analyze microbes and odors that tell a more complete story, while pursuing ways to enhance traditional tools as well.

    By Meghan Rosen
  2. Health & Medicine

    Blood test can predict breast cancer relapse

    Blood tests for breast cancer DNA can predict relapse.

    By Tina Hesman Saey
  3. Animals

    Twin pandas look forward to growth spurts

    The surviving panda twin born at the National Zoo last weekend will undergo DNA tests to discover paternity.

    By Meghan Rosen
  4. Climate

    Hurricane’s tiny earthquakes could help forecasters

    Hurricane Sandy set off small earthquakes under its eye as it moved up the U.S.