New research has demonstrated the powerful impacts the reintroduction of predators can have on an ecosystem. The presence of ...

Editor’s Note: This story accompanies the May 2016 issue of National Geographic magazine, devoted entirely to America’s first national park ... fashion in Yellowstone, human population ...

Two Montana-based conservation groups have sued Yellowstone National Park ... with an average population of around 5,000 a year. To control the number of bison, the park would continue to capture ...

During that time, a continental population of 35 million bison was brought to the brink of extinction. The park ... miles away from Yellowstone, Grand Teton, and the National Elk Refuge.