Coyotes live an average of about 6 years, although one Yellowstone coyote lived to be more than 13 before she was killed and eaten by a cougar. The coyote is a common predator in the park, often seen alone or in packs, traveling through the park's wide open valleys hunting small mammals. But they are widely distributed and their sign can also be found in the forests and thermal areas throughout Yellowstone. They are capable of killing large prey, especially when they cooperatively hunt.