If the wolf is gone, then we will continue cascading to ecological failure, and all of the wild and wonderful reasons people call the Yellowstone area home will eventually vanish.
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Casey Anderson takes a trip to Yellowstone to check out the bustling new life of baby animals in this clip from "Expedition Wild."
Watch as a baby bi...
In anticipation of National Geographic's new US network, Nat Geo Wild, we're previewing various clips from some of their wild new shows.
In the premi...
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