It's been only 15 years since gray wolves, after years of near-extinction, were reintroduced into Yellowstone National Park. The initial group of 66 Người sói were transplanted into the park from Canada beginning in 1995. Now, thêm than 1,545 Người sói roam Idaho, Montana, and Wyoming.Biologists say that a minimum of 2,000 to 3,000 Người sói are needed within the area in order to keep them from disappearing again.The Người sói have had tremendous được ưa chuộng support from the beginning. Their reintroduction has been bởi far the most publicized and celebrated of any wildlife reintroduction in the U.S. The wolves...
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