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).
A well-known prehensile-tailed porcupine named Clark died March 7 at the Smithsonian’s National Zoo. Clark had developed intermittent wheezing and a suspected upper-respiratory tract infection earlier this year that did not completely improve with antibiotic and anti-inflammatory treatment.