News

  1. Health & Medicine

    Worm genes take on bacterial foes

    Creatures as simple as worms have an effective immune defense.

    By John Travis
  2. Archaeology

    Ancient birth brick emerges in Egypt

    Investigations at a 3,700-year-old Egyptian town have yielded a painted brick that was used in childbirth rituals.

    By Bruce Bower
  3. Anthropology

    Ancient populations were game for growth

    Archaeological evidence of a Stone Age shift in dietary preferences, from slow to swift small game, suggests that the human population rose sharply sometime between 100,000 and 50,000 years ago.

    By Bruce Bower
  4. Animals

    Slithering on Air: Flying snakes glide through the treetops

    The paradise tree snake flies by flattening its body and slithering through the air.