News

  1. Health & Medicine

    Vanishing Devices: Doctors implant disappearing stents, heart patches

    Novel heart devices fashioned mainly from materials that the body can absorb or break down have made their debut in heart patients.

    By Ben Harder
  2. Health & Medicine

    Lung Scan: CT may catch some treatable cancers

    Computed tomography (CT) scans seem to catch lung cancer early in smokers, but questions remain about the screening procedure.

    By Nathan Seppa
  3. Paleontology

    Mastodons in Musth: Tusks may chronicle battles between males

    Damage in the fossil tusks of male mastodons suggests that the creatures engaged in fierce combat with rival males at a certain time of year each year of their adult lives.