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

For the first time since the 1940s, new aspens have joined the forest canopy in Yellowstone National Park. Researchers say ...

For the first time in 80 years, aspen trees are thriving in Yellowstone National Park in the US, due mostly to the ...

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

The Copper Creek Pack has preyed on eight cattle in Pitkin County since state wildlife managers released the pack last winter ...

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, ...

The reintroduction of large carnivores has initiated a recovery process that had been shut down for decades,” says Painter in a statement.

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

Three decades after wolves were reintroduced in Yellowstone National Park, aspen stands are recovering, a new analysis ...

Madhavi Bradford — The opinion piece by Suzanne Stone (“Setting the record straight on the Copper Creek wolves,” July 28, Aspen Daily ...