One of the most popular sites to visit in Yellowstone is the Grand Prismatic Spring. It's popular among people and also for bears as recent visitors at the park discovered when they saw a huge grizzly walking down the boardwalk.
Many visitors flock to Yellowstone National Park to see wildlife and nature. Sometimes wildlife and nature happen right in front of you or in this case behind. A driver shared graphic video showing an elk that was chased into a car by a black wolf.