News

  1. Animals

    Sexual conflict pushes species making

    A novel comparison of 25 pairs of insect lineages finds that sexual conflict plays more of a role in making new species than scientists had realized.

    By Susan Milius
  2. Health & Medicine

    Blood-cell transplants slow kidney cancer

    A new transplant technique that uses blood transfusions from a sibling combined with decreasing doses of immune-suppressing drugs enables some patients to fight off advanced kidney cancer.

    By Nathan Seppa
  3. Chemistry

    Old Martian questions may have new answer

    Researchers simulating Martian conditions in a test tube discover a likely reason why no organic molecules have yet been found on the surface of the Red Planet.