Yellowstone's wolves are helping a new generation of young aspen trees to grow tall and join the forest canopy — the first new generation of such trees in Yellowstone's northern range in 80 years.

Add Yahoo as a preferred source to see more of our stories on Google. After decades of decline, the aspen forests of northern Yellowstone are finally making a comeback, and believe it or not, it's all ...

Warming temperatures continuously impact mankind, wildlife, major corporations and propositions at all levels of government, but for Flagstaff forests, climate change is a catalyst for countless ...

Question: What’s the difference between a popple tree and an aspen? I hear the terms used interchangeably. Answer: Popple (or poplar) are common names for aspen trees because their genus is populus, ...

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 ...

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 ...