Uncategorized

  1. Health & Medicine

    Microbe Hunt: Novel bacterium infects immune-deficient people

    A newfound bacterium can cause illness in people who have a rare, inherited form of immune deficiency.

    By Ben Harder
  2. 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
  3. Animals

    Foodfree growth

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

    By Janet Raloff
  4. 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.