Shades of Gray: Living with Wolves

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Gray wolves once ranged across North America. But by the 1930s, they were nearly extinct -- trapped, poisoned and hunted by ranchers, farmers and government agents. With protection under the 1973 Endangered Species Act, the wolf population rebounded. But wolves lost federal protection in 2011. Now with hunting now permitted in many western states, the future of this once endangered species may again be in question. Can we live with wolves? Earth Focus travels to Montana and Wyoming to find out.