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, ...

Large carnivores are both clashing and coexisting in the western United States. Although wolves dominate cougars and steal ...

On a remote Alaskan island, gray wolves are rewriting the rulebook by hunting sea otters — a behavior few scientists ever expected to see. Researchers are now uncovering how these coastal wolves ...

In the shadow of nuclear disaster, these canines show remarkable resilience to the deadly disease.

In our five-day unit plan, designed specifically for elementary-aged children, students can learn about the fascinating world of wolves ...

The story of wolves in Yellowstone National Park is one of the most successful—and scrutinized—wildlife restoration projects ...

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

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 ...

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 ...

Gray wolves are hunting sea otters. Scientists are studying how land predators adapt to ocean hunting and what this means for ecosystems.