Gray wolves and cougars are not only iconic to the Yellowstone National Park landscape, but they also play important roles in the overall health of the ecosystem. With both being apex predators, ...

The Yellowstone bubble Wolf 1331F’s fate was unusual only in that she made it so far north. When wolves leave the park, they die — often, quickly. Yellowstone’s roughly 100 wolves are among the most ...

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

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

In Yellowstone’s wild chess match between wolves and cougars, it turns out the real power play is theft. After tracking nearly a decade of GPS data and thousands of kill sites, researchers found that ...

Wolves usually rely on cooperation to survive. Hunting large prey such as elk typically involves multiple pack members working together to isolate and exhaust an animal. That reality makes one ...

Learn how ravens in Yellowstone National Park use spatial memory and navigation to locate wolf kills across the landscape without following wolves.