The Isle Royale wolf and moose study is now entering its 68th year. It is the world’s longest-running predator-prey study and ...

A pack of wolves gathers after killing a moose in January at Michigan’s Isle Royale National Park. Gray wolves are thriving at the park five years after authorities began a last-ditch attempt to ...

TRAVERSE CITY, Mich. — Gray wolves are thriving at Isle Royale National Park five years after authorities began a last-ditch attempt to prevent the species from dying out on the Lake Superior island ...