Biological Evolution: Unity and Diversity

  1. Fossils

    Scary ‘chicken’ roamed Earth with T. rex

    Scientists have just pieced together evidence of a weird new dinosaur that sported sharp claws, feathers and a beak. And it just may have been one of the last dinos to roam Earth about 67 million years ago.

  2. Fossils

    Reviving dinosaurs

    With the help of computers, researchers are getting a pretty good idea of how these ancient creatures moved, walked and ate.

  3. Archaeology

    Ancient footprints surface in Britain

    There are hints they could have been made by ancestors of Neandertals.

  4. Life

    Caught in the act

    Scientists observe some evolutionary speed demons as they adapt over the course of just a few years to new environmental conditions.

  5. Fossils

    Where do humans come from?

    Some scientists propose a newfound South African species as the most likely ancestor of the line that led to humans. But not everyone accepts that this is where it all began.

  6. Animals

    Infectious animals

  7. Chemistry

    A plant enemy’s enemy

  8. Animals

    Churk: Not for Thanksgiving

  9. Animals

    The secret songs of giant beavers

  10. Fossils

    Dino teeth tell a traveling tale

  11. Humans

    Mummies share their secrets

    Cutting-edge technology such as CT, or CAT, scans and endoscopes are allowing scientists to see not just what’s underneath the wrappings but also what’s inside a mummy’s body.

  12. Humans

    Old bones ignite fresh debate