From the Star Tribune in Minnesota:

Over the course of a few months this winter, the wolf population on Isle Royale National Park ballooned from 2 to 15 in an extraordinary project to artificially shift the balance of a wilderness.

Captured on the mainland and a neighboring island in Lake Superior, the wolves were anesthetized, vaccinated, collared with GPS devices, and transported across the icy waters by boat and helicopter to their new home. In all, it took the combined effort of a university; a cadre of scientists; state, federal, Canadian and tribal governments; and a couple of nonprofit organizations to accomplish the feat between ferocious winter storms.

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