News

  1. Agriculture

    Bt corn variety OK for black swallowtails

    The first published field study of butterflies and genetically altered corn finds no harm to black swallowtail caterpillars from a common corn variety.

    By Susan Milius
  2. Health & Medicine

    Keeping the beat

    Muscle cells taken from embryonic rats and put into an adult rat's heart can transmit the electric signals that govern the heartbeat.

    By Damaris Christensen
  3. Tech

    Robotic heart surgery

    By using robotic rather than conventional open-heart techniques, doctors can perform heart surgery with smaller incisions, giving patients less pain and speeding recovery.

    By Damaris Christensen
  4. Health & Medicine

    Enzyme Shortage May Lead to Lupus

    Without the enzyme DNase I, mice are vulnerable to symptoms of lupus, a debilitating autoimmune disease.