CORVALLIS, Ore. (KTVZ) – In northern Yellowstone National Park, saplings of quaking aspen, an ecologically important tree in the American West, are being broken by a historically large bison herd, ...

After decades of decline, the aspen forests of northern Yellowstone are finally making a comeback, and believe it or not, it’s all thanks to the return of certain carnivores. A new long-term study has ...

The record numbers of bison in Yellowstone National Park threaten the recovery of the park’s iconic quaking aspen, which scientists had hoped was on the mend, a study has found. The findings, ...

The restoration of gray wolves in Yellowstone National Park has helped revive an aspen tree population unique to the region, a new study has found. Quaking aspen, one of the few deciduous tree species ...

For the past 15 years, Luke Painter has been traveling to the northern range of Yellowstone National Park, where mountains rise and tributaries carve valleys of sage, willows and trees. This includes ...

In northern Yellowstone National Park, saplings of quaking aspen, an ecologically important tree in the American West, are being broken by a historically large bison herd, affecting the comeback of ...

image: A bison bull breaking aspen saplings and eating aspen in the Lamar Valley in northern Yellowstone National Park. Overstory aspen trees have died and fallen to the ground as seen in the photo, ...