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The Zoo is open 8 a.m. to 4 p.m. daily. Entry passes are required for all guests, including infants. Plan your visit.

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Earth Optimism: Elephants

The Smithsonian's National Zoo and Conservation Biology Institute's care and study of Asian elephants is making a positive impact on the species. Learn more about endrocrinology, global collaboration and the work of Dr. Janine Brown in this video.