Yeah and the fact that thousands of wolves were artificially placed in Yellowsto... | Hacker News

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		marcrosoft on June 17, 2019 \| parent \| context \| favorite \| on: What drives Yellowstone's elk migrations? Yeah and the fact that thousands of wolves were artificially placed in Yellowstone.

imiller on June 17, 2019 | [–]

I think you meant 41.

https://www.nps.gov/yell/learn/nature/wolves.htm

wil421 on June 17, 2019 | [–]

After they were artificially removed.

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