The return of wolves and other predators to Yellowstone has reduced elk browsing, allowing aspen trees to grow back for the first time in decades.

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

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

I’m pretty sure this was a quaking aspen (Populus tremuloides) or as many of us New Englanders know them, a quaking poplar. When I think of a "cheery" tree, I think of quaking aspens.

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 spec… ...

Quaking aspen, one of the few deciduous tree species in the northern Rocky Mountain ecosystem, is once again thriving, after suffering severe decline during the 20th century, according to the… ...

If you journey to Fishlake National Forest in Utah, you'll be surrounded by a high-elevation behemoth. It's one of the largest life forms on the planet: a quaking aspen so colossal it has a name ...

In the mountains above Flagstaff, each year brings an autumnal leaf season — thanks to the presence of one of the area’s iconic sights, the quaking aspen. In the spring, they burst with nearly ...

Quaking aspen is one of the most widely distributed species in North America, and it is the primary land cover in much of the Rocky Mountains. Many of its traits make it an adaptable species.

Gray wolves were reintroduced in Yellowstone National Park in 1995 to help control the numbers of elk that were eating young trees, and it is finally paying off for quaking aspen.