From packs of wolves to prides of lions, scientists are uncovering what really makes group hunting work — and where cooperation starts to break down.

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

Researchers installed cameras in the US national park to monitor cougar density and abundance – and to see how these apex predators interact with other species, such as wolves.

On a remote Alaskan island, gray wolves are rewriting the rulebook by hunting sea otters — a behavior few scientists ever expected to see. Researchers are now uncovering how these coastal wolves ...

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