The expansive elk meadow in the zoo’s Living Northwest Trail is designed to offer visitors an opportunity to view wolves in the foreground to help teach visitors about the critical predator-prey relationship between elk and wolves in their natural habitat. Two subspecies of elk range in Washington state: Roosevelt elk, which are primarily on the west side of the Cascades, and Rocky Mountain elk, which are primarily on the east side. At the zoo, Huckleberry, Holly, and Buttons are Rocky Mountain and Lily and Willow are Roosevelt.