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 instructional — than it appears.

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Biologists say wolf packs have contributed to the decline in Yellowstone elk numbers over the last 30 years since they were reintroduced to the park, but many also say that the elk population before ...

In the heart of Wyoming lies Yellowstone National Park, a sprawling ecosystem that has captivated millions of visitors for centuries. However, its delicate balance faced a near collapse before a ...

Ecosystems change when keystone species restore balance. Philanthropy can learn from nature by funding the actors, infrastructure and relationships that allow complex systems to regenerate.

Thirty years ago, park rangers reintroduced grey wolves into Yellowstone National Park. They wanted to restore the ecosystem and get the elk... How the wolf changed Yellowstone 30 years after ...

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, ...