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

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 ...

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

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

Ecosystems change when keystone species restore balance. Philanthropy can learn from nature by funding the actors, ...

A new study shows that interactions between wolves and cougars in Yellowstone National Park are driven by wolves stealing prey killed by cougars and that shifts in cougar diets to smaller prey help ...

Forbes contributors publish independent expert analyses and insights. GrrlScientist writes about evolution, ecology, behavior and health. This voice experience is generated by AI. Learn more. This ...

Wolves in Yellowstone National Park have experienced a 27% decline in population in 2025.

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, ...