Thirty years ago, park rangers reintroduced grey wolves into Yellowstone National Park. They wanted to restore the ecosystem and get the elk... What is the legacy of Yellowstone wolves 30 years after ...

An ecological milestone has been unveiled at Yellowstone National Park following the finding of a new generation of overstory aspen trees for the first time in 80 years. This hopeful rebalance of the ...

Johnnie LeFaiver took her son to the Lamar Valley in Yellowstone National Park this summer, because the experience of watching wolves there 20 years ago seared into her memory and she wanted Micah to ...

A 20-year study on the effects of reintroducing wolves into Yellowstone National Park found that removing the apex predators has caused far more damage than expected to the park's ecosystem. Colorado ...

A new analysis challenges one of the most publicized claims about Yellowstone's wolves. In a detailed comment published in ...

In Yellowstone National Park — where gray wolves were reintroduced starting in 1995 — researchers have gone back and forth on whether the restoration of wolves has impacted the ecosystem. The idea is ...

PARADISE VALLEY, Mont. — Long after the fanfare that surrounded the return of the gray wolf to Yellowstone National Park, the most telling chapter may have been written this year by an unruly pack of ...

Aspen trees are making a comeback at Yellowstone National Park. NPS / Diane Renkin Aspen trees are getting a boost from wolves at Yellowstone National Park, new research suggests. For the first time ...