Scientists Warn Yellowstone Wolves Could Be Approaching a Crisis ...

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Narrated by the British writer and environmental campaigner George Monbiot, and largely drawn from his book Feral, it ...

Learn more about why the story of how wolves saved Yellowstone National Park’s aspens is more complicated — and more ...

Gray wolves and cougars are not only iconic to the Yellowstone National Park landscape, but they also play important roles in ...

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 ...

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.

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, ...