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.

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Donor Year End Impact Reports

American bison on the American Prairie Reserve in Montana.

As you know, at the Smithsonian’s National Zoo and Conservation Biology Institute we have made extraordinary advances in our work to better understand and save animals and their habitats. Our goals are ambitious, but with your help, we work every day to continue our efforts to save species, inspire visitors and train the next generation of conservationists.

Donor year end reports highlight the many ways in which donors like you have helped impact our mission to save species. Take a look through past reports:

2018 Year End Report

Each year, your commitment to our mission enables us to continue important conservation projects around the world. From measuring biodiversity in Peru's tropical rainforests to collaborating with American Prairie Reserve to restore grasslands and launching a veterinary fellows training program in Kenya, 2018 was no exception. Read the 2018 Year End Report.

2017 Year End Report

In 2017, we studied giraffes in Kenya and Asian elephants in Myanmar, conducted training courses for Zoo colleagues in India, and cared for a tiger cub and prepared for the birth of a western lowland gorilla right here in Washington, D.C. We could not accomplish so much or maintain strides toward our mission without your support. Read the 2017 Year End Report.