A tour group watched a pack of wolves unsuccessfully try to take down a bison in Yellowstone National Park this past weekend.

Two ravens soar above a wolf pack in Yellowstone. This type of short-distance following is common, but prolonged following is extremely rare. When a wolf pack runs down its prey, the first on the ...

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 ...

It's eat or be eaten in Yellowstone National Park. The wildlife of the iconic park can broadly be categorized as prey and predators. Among the approximately 70 different mammal species, those that ...

A mild winter means fewer rotting big game carcasses for Wyoming grizzlies to feast on this spring and wolves are getting ...