A dog was seen jumping out of a car window and chasing a wolf in Yellowstone Friday. A tour guide captured photographs of the ...

Tourists witnessed an extraordinary scene in Yellowstone National Park on Friday as a German Shepherd leaped from the back of ...

A German shepherd showed its predator instincts Friday, leaping from a vehicle and chasing a wolf in Yellowstone National ...

Jonathan Newton/Getty A 400 lb. grizzly bear was euthanized by Yellowstone National Park staff last week after it overturned dumpsters and searched for food in developed areas of the park.