Just be glad these big wolves weren't coming after you. A new video shows a snowmobiler who grabbed his phone and captured video when he saw two wolves running past him trying to chase down a coyote.
The correct way to handle an encounter with bison is to pull off to the right if possible, shut your engines off and stand as still as you can, using your motorized vehicle as a barrier.
Yellowstone National Park is set to open for the winter season. Visitors will be able to travel the park's interior roads on commercially guided snowmobiles and snowcoaches from the north, west and south entrances.