For thirty years, the return of the wolf to Yellowstone has been told as a triumph — the packs came back, the valleys healed, nature won. But out on the snow, the biologists who know these animals best have been quietly tracking a darker story. Something is killing Yellowstone's wolves, and when scientists finally traced it all the way down, the answer wasn't one thing but four: a virus that comes for the pups, a mite deliberately loosed on this species more than a century ago, the wolves themselves along every contested border, and human rifles at the invisible edge of the park. Two of those killers should not exist at all. This is the real story of what's hunting the most watched wolves on Earth — and whether anything can stop it.

For educational and documentary purposes. Sources include the Yellowstone Wolf Project and published wildlife research.

Chapters:
0:00 The signal in the night
2:00 How the wolves came back
7:00 The virus in the dens
12:00 The mite that shouldn't be here
17:00 When wolves kill wolves
19:00 Is it enough?











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