Yellowstone’s wolf reintroduction has been hailed as a success. But now advocates are worried for the wolves’ future.

From the Bozeman Daily Chronicle:

MAMMOTH HOT SPRINGS — A convoy of guides, tourists and seasoned wolf-watchers set out from Gardiner before dawn. They didn’t have to go far.

Five miles or so beyond Yellowstone National Park’s north entrance, a black wolf howled and scurried across a slope.

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