Uncategorized

  1. Anthropology

    Chimps scratch out grooming requests

    Pairs of adult males in a community of wild African chimps often communicate with gestures.

    By Bruce Bower
  2. Animals

    Sharpshooter threatens Tahiti by inedibility

    A North American insect is menacing Tahitian ecosystems by getting itself killed and proving surprisingly toxic to its predators.

    By Susan Milius
  3. Health & Medicine

    Parasite can’t survive without its tail

    The protozoan that causes African sleeping sickness can't survive in the mammalian bloodstream without its long, whiplike tail.

    By Christen Brownlee
  4. Physics

    Revealing Covert Actions

    The recent merger of high-speed video technology and centuries-old techniques for seeing ordinarily invisible fluctuations of the air is enabling engineers to visualize and study the previously unseen, large-scale behavior of shock waves in explosions and aerodynamics research.