Uncategorized

  1. Anthropology

    Branchless Evolution: Fossils point to single hominid root

    Fossils of a 4.1-million-year-old human ancestor in Ethiopia bolster the controversial idea that early members of our evolutionary family arose one species at a time rather than branching out into numerous species.

    By Bruce Bower
  2. Animals

    Foodfree growth

    Rattlesnakes undergo a hibernation-like state to survive long periods of famine, while continuing to grow longer.

    By Janet Raloff
  3. Health & Medicine

    Alcohol spurs cancer growth

    Downing the human equivalent of two to four alcoholic drinks per day dramatically spurs the growth of cancers implanted in lab mice.

    By Janet Raloff
  4. Humans

    Letters from the April 15, 2006, issue of Science News

    Light shift Regarding “Blasts from the Past: Astronomers begin to go the distance with gamma-ray bursts” (SN: 2/11/06, p.