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

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The overpopulated elk herds of Yellowstone’s Northern Range numbered around 15,000-20,000 in the years leading up to the 1995 wolf reintroduction. Counts are now closer to 5,000, much to the dismay of ...

For decades, reintroducing grizzlies to California seemed completely unrealistic. Now, the California Legislature is ...

Predators might be ill-reputed for their fearmongering gestures, but from a scientist’s point of view, they are catalysts of transformation. They are the architects of ecosystems. By eliminating what ...

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, ...