Aspen forest is reclaiming the skyline of Yellowstone National Park after decades of controversy over efforts to return ...

Yellowstone National Park is celebrating an ecological milestone along with a key anniversary this summer, Oregon State ...

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

The restoration of gray wolves in Yellowstone National Park has helped revive an aspen tree population unique to the region, ...

In 1995, a bold decision was made that would forever change the course of Yellowstone National Park's ecosystem and economy. The U.S. government reintroduced 14 Canadian wolves into the wild, a move ...

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

Sitting in an old-growth spruce fir forest, Doug Smith says he can see first-hand the impact of reintroducing wolves on the larger ecosystem of Yellowstone National Park. Long before Yellowstone ...

Yellowstone National Park is celebrating an ecological milestone along with a key anniversary this summer, Oregon State ...

In a world of quick wins and impatient headlines, Martin Goebel is playing the long game. Now Director for Mexico at ...

Yellowstone National Park is celebrating an ecological milestone along with a key anniversary this summer, Oregon State University ...

Anecdotal evidence suggests bison might have specific behaviors associated with death and mourning. In one case in northern ...

Environmental organizations say the U.S. Forest Service is intentionally sidestepping federal policy, ignoring science on ...