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  • It's a Fishapod!

    It's a Fishapod!


    This article by Sean B. Carroll tells the story of the search for and discovery of Tiktaalik, an animal with a mix of fish and tetrapod features—a fishapod! It supplements the short film Great Transitions: The Origin of Tetrapods, starring Neil Shubin.

  • How Did We Get Here?

    How Did We Get Here?


    From the inheritance of acquired traits to natural selection to evo devo, evolutionary theory has itself evolved.