News

  1. Paleontology

    Earliest primate had tree-climber ankles

    A creature known only from fossils of its teeth gets some more parts.

    By Susan Milius
  2. Chemistry

    Human blood types have deep evolutionary roots

    The ABO system may date back 20 million years or more, a genetic analysis suggests.

    By Rachel Ehrenberg
  3. Life

    Hind wings gave four-winged dino flight control

    Much-debated rear wings could have given Microraptor extra help in airborne maneuvers.

    By Susan Milius
  4. Earth

    Spanish quake linked to groundwater pumping

    Draining aquifers likely triggered 2011 tremor that killed nine people.

    By Alexandra Witze
  5. Life

    Fasting hormone helps mice live longer

    A protein can trick the body into entering starvation mode.