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

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

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

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

Bison, elk and other animals die in droves in Yellowstone's remote “animal boneyard.” Only a few know how to get there, ...

Add Yahoo as a preferred source to see more of our stories on Google. A wolf carries a very young pup by its hindquarters in this image caught by a game camera. A new study shows that contrary to long ...

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

The story of wolves in Yellowstone National Park is one of the most successful—and scrutinized—wildlife restoration projects ...

Add Yahoo as a preferred source to see more of our stories on Google. Mature elk can run 40 mph when they become so inspired, and recent footage from Yellowstone National Park shows that young elk are ...

In a new study, a UC Berkeley-led team of biologists observed gray wolves near Yellowstone National Park traveling 20 kilometers or more over rugged, mountainous terrain, with very young pups in tow.

Get any of our free daily email newsletters — news headlines, opinion, e-edition, obituaries and more. Scientific research has long assumed gray wolves are non-migratory during springtime, staying ...