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 ...

Over the last three decades, Yellowstone National Park has undergone an ecological cascade. As elk numbers fell, aspen and willow trees thrived. This, in turn, allowed beaver numbers to increase, ...

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 ...

A program to reintroduce the predators is essentially blocked, with Colorado leaders saying the state is being punished for ...

New research published in Nature Scientific Reports reveals how gray wolves in Isle Royale National Park seasonally alter their habitat preferences to align with beavers’ habitat preferences, a shift ...

The U.S. Fish and Wildlife Service announced Wednesday that it had completed necropsies on two female wolves that died in the spring. Both were among the 15 wolves relocated to Colorado in January ...

New research broadens our understanding of how gray wolves interact with and influence aquatic habitats. On Prince of Wales Island, Alaska, gray wolves have been observed engaging in an unusual ...

Across North America, mountain lions, bears, and gray wolves have made a remarkable comeback over the last 50 years. Once nearly exterminated, these animals have been recovering their populations and ...

I have attended wolf panel discussions and hearings, read articles and researched the wolf. Introducing wolves into the ecosystem does not compare to the slaughter of the buffalo to starve the natives ...

Gray wolves are currently listed as endangered under the Endangered Species Act in most of the lower 48 states, except for ...