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).
By Lauren Augustine, Reptile Discovery Center Keeper at the National Zoo Eastern indigo snakes, Drymarchon couperii, are the largest nonvenomous snake in North America. They live in a variety of habitats depending on the region. They are beautiful, uniformly black but in sunlight they are remarkably...