BILLINGS – For more than a decade a passionate debate has reverberated within Yellowstone National Park’s scientific community regarding wolf reintroduction. Did wolves improve aspen growth by helping ...

Add Yahoo as a preferred source to see more of our stories on Google. FLAGSTAFF — Beneath the scenic yellow and red leaves of soaring aspen trees in the Kachina Wilderness, forest ecologist Mike ...

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 ...

Yellowstone National Park is celebrating an ecological milestone along with a key anniversary this summer, Oregon State University researchers report. A paper published in Forest Ecology and ...

Yellowstone has opened the eyes of experts to another ecological phenomenon, which has been linked to the return of wolves in the area. It has been explained in detail within the journal Forest ...

FLAGSTAFF — Beneath the scenic yellow and red leaves of soaring aspen trees in the Kachina Wilderness, forest ecologist Mike Stoddard is looking down. His concern isn’t the brilliant fall foliage but ...