Are you interested in destructive supervolcanoes and ferocious wildlife? If so, this collection is for you. The geological features of the park’s supervolcano are discussed along with wildlife including aquatic animals, bears, and wolves.
http://www.nps.gov/
Yellowstone's Restless Giant - Main Feature
Yellowstone National Park: The Yellowstone supervolcano is discussed in this video. The function it serves to geysers throughout the park as well as its potential destructive force are covered.