A new study shows how wolves steal kills from cougars in Yellowstone, driving an uneven feeding rivalry and changing cougar ...

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

Add Yahoo as a preferred source to see more of our stories on Google. A tour group in Yellowstone National Park on Sunday witnessed a spectacular chase involving a wolf and coyote. The accompanying ...

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