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 ...

Footage shows part of a wolf-versus-elk pursuit that also has bison taking cover.

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A tour group in Yellowstone National Park on Sunday witnessed a spectacular chase involving a wolf and coyote. The accompanying footage, captured by Yellowstone Tour Guides, is revealing in that it ...