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

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.

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 ...

The reintroduction of wolves to Yellowstone National Park in the 1990s had a cascading effect that benefited the entire ecosystem, a new study finds. The finding shows how the return or loss of apex ...

YELLOWSTONE NATIONAL PARK – Snow crunched underfoot as Mark Hebblewhite scanned the ridgelines of Canada’s Banff National Park. It was 1995, and the young biologist, fresh out of undergrad, was ...

"Free-ranging wolves in Yellowstone - where are they going to go? What are they going to do?" I can't start this review without admitting that I have loved wolves all of my life. When I was in third ...

Wolves were reintroduced to Yellowstone National Park in 1995 and get the full Nat Geo treatment here in "Yellowstone Wolves: ...

In a new study, a UC Berkeley-led team of biologists observed gray wolves near Yellowstone National Park traveling 20 kilometers or more over rugged, mountainous terrain, with very young pups in tow.