A wolf at Michigan's Isle Royale National Park was killed by the National Park Service after officials said it had developed dangerous habits. The decision, a first for the park, highlights the risks ...

On Prince of Wales Island, Alaska, gray wolves are doing something unexpected: hunting sea otters. This surprising dietary shift appears to have notable implications for both ecosystems and wolf ...

A new study shows that interactions between wolves and cougars in Yellowstone National Park are driven by wolves stealing prey killed by cougars and that shifts in cougar diets to smaller prey help ...

Wolves are swift and agile, but they typically remain close to the ground while chasing prey. But not always. The accompanying trail-cam footage, courtesy of the Voyageurs Wolf Project, shows a large ...