Large carnivores are both clashing and coexisting in the western United States. Although wolves dominate cougars and steal ...

Researchers installed cameras in the US national park to monitor cougar density and abundance – and to see how these apex ...

In Yellowstone, cougars coexist with wolves by changing what they eat and where they hunt, minimizing conflict driven largely by prey theft.

Thirty years ago, park rangers reintroduced grey wolves into Yellowstone National Park. They wanted to restore the ecosystem and get the elk population, which had decimated the plant community, in ...

A new study shows that interactions between wolves and cougars in Yellowstone National Park are driven by wolves stealing ...

A new study has found that cougars are making slight changes to their diets in order to avoid encounters with wolves. In ...

A new study documents the complex interactions between cougars and gray wolves in Yellowstone National Park and finds their ...

Over the last three decades, Yellowstone National Park has undergone an ecological cascade. As elk numbers fell, aspen and willow trees thrived. This, in turn, allowed beaver numbers to increase, ...

Previous research on the effect of wolves on the food web has been criticized, raising questions about the predator’s role in the Yellowstone ecosystem. When you purchase through links on our site, we ...