YELLOWSTONE NATIONAL PARK, Wyo. (AP) — Yellowstone National Park has lost a record number of wolves to this year’s hunting season, and that’s left scientists scrambling to keep years of research alive.

So far this year, hunters have killed 12 percent of the park’s wolf population, putting hunting well on its way to replacing other wolves as the leading cause of wolf mortality, said YNP wolf biologist Doug Smith.

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