News

  1. Anthropology

    Prehistoric Family Split: DNA puts Neandertals on edge of human ancestry

    The largest sample of ancient mitochondrial DNA extracted from Stone Age fossils to date indicates that Neandertals made, at most, a small genetic contribution to our direct prehistoric ancestors.

    By Bruce Bower
  2. Health & Medicine

    Gap in the Defense: Brain cancer patients short on valuable protein

    Brain tumor cells have a dearth of an obscure protein called ING4, whose sister compounds have shown anticancer effects.

    By Nathan Seppa
  3. Chemistry

    Mini Motor: Synthetic molecule yields nanoscale rotor

    Scientists have built a tiny rotor out of a synthesized molecule that rotates in the presence of an electric field.