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Beginning Jan. 18, 2022, the Zoo is open Thursdays, Fridays, Saturdays and Sundays from 8 a.m. to 3 p.m. (last admittance 2:30 p.m.). Select animal buildings remain closed. 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.

the words "Earth Optimism" "Conservation Commons" Smithsonian

Earth Optimism Month

Apr. 01, 2020 to Apr. 30, 2021
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Earth Optimism Month

Celebrate Earth Optimism with the Smithsonian's National Zoo and Conservation Biology Institute throughout April. All month long, the Zoo and the Smithsonian offer engaging webinars with a focus on connecting students to conservation and sustainability, both globally and locally.

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