A short film (33 min) about the "the amazing story behind one of the revolutionary discoveries of the last 100 years" Beautiful footage and clear explantions of the K-T boundary and how the world changed between the Mesozoic and the Cenozoic eras. As explained in the news release, this film is in three parts to make it user friendly, and this allows for discussion about the content...

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In its 4.6 billion year history, Earth has undergone massive geologic and climatic changes and provided habitat to an ever-changing cast of life forms. To learn more about the origins and evolution of Earth and its inhabitants, investigate this extensive collection of resources.

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