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Long-extinct giant beasts and the strange world they once inhabited areresurrected through fossil evidence and other scientific data in this Discovery Channel program that reveals how these creatures once lived and flourished.
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Episode 1
Sun, Sep 13, 200944 mins
When the land bridge between North and South America formed, the terror bird migrated north where is competed with the saber tooth cat and wolves. This program examine why the wolf survived despite the fearsome armory of the other two predators.





