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, ...

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 ...

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Previous research on the effect of wolves on the food web has been criticized, raising questions about the predator’s role in the Yellowstone ecosystem. When you purchase through links on our site, we ...