Mystery in Yellowstone

Yellowstone National Park is home to a vast array of landscapes and a huge diversity of animals united in a fascinating ecosystem one that is currently in severe trouble. The area once contained over 19000 elk but its numbers have plummeted by 80% in the last two decades. The mysterious decline has sparked many questions and researchers are in a race to provide answers. Join them as they investigate a series of theories and suspects from wolves to bears to trees to trout in an attempt to solve this alarming puzzle.