News

  1. Anthropology

    Stone Age signs of complexity

    Ancient engravings found in South Africa support the theory that humans began to think and behave in symbolic ways a surprisingly long time ago.

    By Bruce Bower
  2. Anthropology

    The gene that came to stay

    A gene thought by some scientists to foster a bold, novelty-seeking personality, as well as attention-deficit hyperactivity (ADHD), apparently spread substantially in human populations over roughly the past 40,000 years.

    By Bruce Bower
  3. Health & Medicine

    Viruses stop antibiotic-resistant bacteria

    Bacteriophages, viruses that destroy bacteria, can protect mice from bacteria that are impervious to antibiotics.

    By John Travis
  4. Chemistry

    New structure reveals catalysts’ details

    Researchers have created a new compound that contains a palladium atom bonded in a unique way to six silicon atoms.