Uncategorized

  1. Anthropology

    Ancient Slow Growth: Fossil teeth show roots of human development

    An extended period of childhood evolved in people at least 160,000 years ago.

    By Bruce Bower
  2. Health & Medicine

    Brain Fix: Stem cells supply missing enzyme

    Brain stem cells implanted into sick mice restored a missing enzyme and extended life span by 70 percent.

    By Brian Vastag
  3. Earth

    Hey, it’s cooler near the sprinklers

    Extensive agricultural irrigation can significantly affect local climate and may be masking the effects of global warming in some areas.

    By Sid Perkins
  4. Tech

    EPA council sets priorities

    The Environmental Protection Agency's Science Policy Council has outlined the agency's nanotechnology-research needs.