Aspen forests help slow the spread of wildfires and could serve as fire breaks in Colorado and other southwestern states, ...

The apex predators, restored to the park in 1995, appear to be keeping the local population of plant-eating elk in check, ...

Pitkin County ranchers question why Colorado Parks and Wildlife is bent on protecting a depredating wolfpack that continues ...

For the first time in 80 years, a new generation of fully-fledged aspen trees has grown in Yellowstone’s northern range.

These territorial canines, who live and hunt in packs, were reintroduced to the national park 30 years ago. It’s good news ...

Gray wolves were reintroduced in Yellowstone National Park in 1995 to help control the numbers of elk that were eating young ...