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.

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  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.

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  3. Archaeology

    Ancient footprints surface in Britain

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

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  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.

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  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.

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  6. Animals

    Infectious animals

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  7. Chemistry

    A plant enemy’s enemy

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  8. Animals

    Churk: Not for Thanksgiving

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  9. Animals

    The secret songs of giant beavers

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  10. Fossils

    Dino teeth tell a traveling tale

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  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.

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  12. Humans

    Old bones ignite fresh debate

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