News

  1. Earth

    Americas’ hookup not so ancient after all

    Debate lingers over when the Isthmus of Panama formed and closed the seaway that separated North and South America millions of years ago.

    By Thomas Sumner
  2. Genetics

    Genetic diversity data offers medical benefits

    Study of protein-producing DNA narrows down disease-causing genetic variants.

    By Tina Hesman Saey
  3. Health & Medicine

    When it comes to antimicrobial resistance, watch out for wildlife

    Focusing on antimicrobial resistance in hospitals and farms misses a big and not well understood part of the issue: wildlife.

    By Susan Milius
  4. Life

    Genes that control toxin production in C. difficile ID’d

    Pinpointing the genes behind Clostridium difficile toxin production could help researchers disarm the superbug without killing “good” bacteria.