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).
The secret to salamanders’ survival may be in their slimy secretions. Scientists at the Smithsonian Conservation Biology Institute are swabbing salamanders in Shenandoah, looking for disease-fighting microbes that live in the mucus on their skin.