Great Transitions: The Origin Of Tetrapods

Illustration of a four-legged animal standing in shallow water on top of a layer of rock. Caption: Many things must happen for an animal to be fossilized.

Charles Darwin once boldly predicted that buried deep in the earth are transitional fossils of creatures with intermediate features between ancestral animal groups and the modern animal groups. Since Darwin’s time, many transitional fossils have been discovered, and they provide crucial insights into the origin of key structures and the creatures that possess them. And University of Chicago paleontologist and award-winning author Neil Shubin provides a first-hand account of the painstaking search for the transitional fossil of Tiktaalik, a creature with a mix of features common to fish and four-legged animals.

(Source: DCMP)

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  • Great Transitions: The Origin Of Tetrapods

    Type:
    Video
    Format:
    Streaming
    Accommodations:
    English Audio Descriptions - Visual, English Captions - Auditory
    Languages:
    English
    License:
    OER
    Author:
    Howard Hughes Medical Institute
    Length:
    18 minutes