News

  1. Anthropology

    Human ancestors threw stone-tipped spears at prey

    African discoveries show that hunting weapons thrown from a distance appeared by 279,000 years ago.

    By Bruce Bower
  2. Health & Medicine

    Quick cooling after cardiac arrest questioned

    For a decade, doctors have made induced hypothermia standard practice.

    By Laura Beil
  3. Animals

    Mothballs, rubbing alcohol score poorly in tests of DIY bedbug control

    Mattress encasement, dry ice in bags, hot clothes dryers do help control infestation.

    By Susan Milius
  4. Health & Medicine

    Changes in malaria parasite may make Africans more susceptible

    Ominous signals are emerging simultaneously in population studies and under the microscope that Plasmodium vivax, a malaria parasite well known in Asia and Latin America, may have found a way to infect Africans.