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× The Zoo is open! Entry passes are required for all guests, including infants. All visitors ages 2 and older are required to wear a mask in all indoor spaces at the Zoo, regardless of their vaccination status. Fully vaccinated visitors do not need to wear a mask in outdoor areas.
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Earth Optimism: Conservation Success Stories

Celebrate Earth Week with some of the incredible conservation success stories at the Smithsonian's National Zoo and Conservation Biology Institute. The interactive features of this online tour introduce six amazing species and their stories of hope that will make you an Earth Optimist! Click "Begin Tour" to get started.