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).
Tuyen, a 10-year-old female white-cheeked gibbon at the Smithsonian’s National Zoo, was humanely euthanized Oct. 12, after suffering from progressive neurologic disease and acute seizures.