Thirty years ago, park rangers reintroduced grey wolves into Yellowstone National Park. They wanted to restore the ecosystem ...

"The reintroduction of large carnivores has initiated a recovery process that had been shut down for decades." ...

Humans drove wolves nearly to extinction in the American West. Reintroducing them in 1995 was, and still is, controversial.

Three decades after wolves were reintroduced in Yellowstone National Park, aspen stands are recovering, a new analysis ...

Without the threat of wolves throughout much of the 20th century, the elk devoured woody vegetation in Yellowstone, like willows and stands of white bark Aspen trees. When wolves were reintroduced ...

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 ...

Wolves are helping Yellowstone’s aspen trees grow tall again after decades of overgrazing.

Gray wolves were hunted near-extinction but were reintroduced in Idaho and at Yellowstone National Park in the mid-1990s.

Thirty years ago, park rangers reintroduced grey wolves into Yellowstone National Park. They wanted to restore the ecosystem and get the elk population, which had decimated the plant community, in ...

Three decades after wolves were reintroduced in Yellowstone National Park, aspen stands are recovering, a new analysis suggests.

Thirty years ago, park rangers reintroduced grey wolves into Yellowstone National Park. They wanted to restore the ecosystem and get the elk population, which had decimated the plant community, in ...