News

  1. Archaeology

    Stone Age folk in Asia adapted to extremes

    Preliminary evidence indicates that people occupied the harsh, high-altitude environment of Asia's Tibetan Plateau in the late Stone Age, between 11,000 and 12,000 years ago.

    By Bruce Bower
  2. Humans

    Physicist steps up to be science adviser

    President Bush has announced that he intends to nominate John Marburger, the head of Brookhaven National Laboratory, as his science advisor.

    By Charlotte Schubert

  3. Tree pollen exploits surrogate mothers

    An Algerian cypress releases pollen that can develop without fertilization, using another tree species' female organs instead of a mate's.

    By Susan Milius
  4. Health & Medicine

    Nicotine spurs vessel growth, maybe cancer

    Test-tube and mouse experiments show that nicotine induces angiogenesis, the formation of new blood vessels.