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Das Wunder im Yellowstone-Nationalpark (wissenschaftlicher Film)

In 1995 wolves were resettled in Yellowstone. 70 years after their extermination, wolves restored an entire ecosystem which had been completely out of balance. Filmed over the course of one and a half years, the documentary follows the White Alpha Wolf and her Pack, the largest pack in the National Park and tells a unique success story. With surprises and unexpected setbacks. Their influence extends down the entire food chain, to the smallest insects. The vegetation, even the landscape changed.