Footage shows part of a wolf-versus-elk pursuit that also has bison taking cover.

A tourist guide at Yellowstone filmed a wolf chasing after an elk for about 3.5 to 4 miles.

A wolf chases magpies and ravens from an elk carcass near Soda Butte. When wolves are on the hunt, a kill rarely goes ...

In Yellowstone’s wild chess match between wolves and cougars, it turns out the real power play is theft. After tracking ...

Predators might be ill-reputed for their fearmongering gestures, but from a scientist’s point of view, they are catalysts of transformation. They are the architects of ecosystems. By eliminating what ...

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. Wolves and cougars have ...

In Yellowstone National Park, the reason cats and canines don’t get along is simple — wolves will kill cougars and steal their food. A recently published study that utilized GPS collar data collected ...

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 ...

Large carnivores are both clashing and coexisting in the western United States. Although wolves dominate cougars and steal their prey, cougars' shift from elk- to deer-heavy diets, paired with a ...