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 ...

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, ...

This story was originally published by Mountain Journal. Around Crystal Creek, where the road bridges the Lamar River at the fringe of Yellowstone National Park’s Lamar Valley, a grove of aspens has ...

Wolves Weekend is a celebration of the IMAX film Lost Wolves of Yellowstone.

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 ...

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 ...

Do ravens follow wolves to feed on their kills? For decades, biologists assumed they did. Ravens are often seen flying with wolves, following their tracks, or gathering quickly at fresh carcasses A ...