When you go hunting, you hope you'll run into a big buck. You also understand that seeing a mountain lion is a possibility. It's not common though to see both animals in a mortal battle which is what some Colorado hunters witnessed recently.
One of the great unsung entertainers in Yellowstone National Park are bison. You never know what these large creatures will be up to. One tourist was surprised to find one doing a dance number with a tree and captured video of that moment.