Please note: The Great Ape House will be closed to visitors on Thursday, April 3.
Due to technical difficulties, we cannot process online payments. Free Entry Passes are still available and visitors may purchase Parking Passes at the Zoo (subject to availability).
Conservation ecologist Andy Boyce lives on the American Prairie Reserve in Phillips County, Montana. It's rugged, it's wild and it's one of the only places left on Earth where scientists have the chance to preserve a complete prairie ecosystem.