A virus outbreak hit Yellowstone wolf pups hard in 2025.

After wolves were reintroduced to Yellowstone National Park, cougars — that had only regained a foothold a few decades earlier — were able to coexist due to their diets changing and the varied ...

Ravens have long been thought to follow wolves to find food, but new research shows they’re far more strategic. By tracking both animals in Yellowstone, scientists discovered that ravens memorize ...