Tom Murphy is a wildlife photographer who has spent countless hours documenting the beauty and wildlife of Yellowstone National Park. He shares experiences from decades of hiking, camping and skiing across Yellowstone, a place he refers to as "one of the finest wild land ecosystems in the world." During that time he's had plenty of grizzly bear encounters, but he is still waiting to cross paths with the ever-elusive wolverine. Tom spoke with Associate Editor Jessica Knoblauch in August of 2013.