Previous research on the effect of wolves on the food web has been criticized, raising questions about the predator’s role in ...

Scientists debunk decades-long study claiming wolves' reintroduction triggered a dramatic transformation in Yellowstone.

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 ...

A look at how wolf policy shifted from eradication to protection, and why wolf conflict is rising again across the West.

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 ...

YELLOWSTONE NATIONAL PARK, Wyo. - Hiking along the small, purling Blacktail Deer Creek, Douglas W. Smith, a wolf biologist, makes his way through a lush curtain of willows. Nearly absent for decades, ...

On four separate occasions, Wolf 907F seized power as the alpha female leader of the Junction Butte Pack in Yellowstone National Park. (National Park Service file photo courtesy of Jeremy ...

This story was originally published by Mountain Journal. Around Crystal Creek, where the road bridges the Lamar River at the fringe of Yellowstone National Park’s Lamar Valley, a grove of aspens has ...

This winter saw the most wolves from Yellowstone National Park killed in about a century. That's because states neighboring the park changed hunting rules in an effort to reduce the animals' numbers.

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 ...

Scientific research has long assumed gray wolves are non-migratory during springtime, staying anchored to tend to litters of nearly helpless pups. For the first weeks of life, after all, pups are ...