A tourist guide at Yellowstone filmed a wolf chasing after an elk for about 3.5 to 4 miles.

It’s an animal-eat-animal world out there, especially in Yellowstone National Park. There are almost 70 different mammal ...

Add Yahoo as a preferred source to see more of our stories on Google. A tour guide and his client this week witnessed an extraordinary scene involving wolves chasing two elk for 3-plus miles in ...

A tour guide and his client this week witnessed an extraordinary scene involving wolves chasing two elk for 3-plus miles in Yellowstone National Park. The accompanying footage, captured by guide ...