2015
Hamill Family Wild Encounters opens.
The new home for the Animal Ambassador program opens.
2016
Brookfield Zoo is first U.S. zoo to earn American Humane Certified seal.
Eight African white-bellied tree pangolins are successfully brought to the Zoo. CZS is a founding member of the Pangolin Consortium, a partnership among seven zoological facilities committed to global pangolin conservation.
2017
CZS holds first International Symposium on Pangolin Husbandry and Conservation.
2018
Brookfield Zoo opens a sensory-friendly family room and resource center.
2019
Hamill Family Nature Plaza opens.
King Conservation Leadership Academy is founded.
2020
CZS researchers complete the largest multi-institutional study of cetaceans.
Endangered Blanding's turtles hatched at the Zoo are released into the wild.
2021
Dr. Michael J. Adkesson is named President and CEO of the Chicago Zoological Society and Director of Brookfield Zoo.
2022
Seven Seas closes for renovation and dolphins are transferred to Minnesota Zoo temporarily.
2024
On March 1, 2024, Brookfield Zoo and its parent organization, the Chicago Zoological Society, unveils a new, unified identity: Brookfield Zoo Chicago.
Dolphins return to Seven Seas following $10M renovation.
Zoo celebrates 90th anniversary and brings in a Ferris Wheel for the first time in celebration. The anniversary Ferris Wheel was deconstructed at the close of the year and would later become a seasonal addition to the Zoo’s East Mall.
Zoo welcomes koalas for the first time in its history for a temporary stay until the fall of 2025.
Zoo announces historic Next Century Plan.
Zoo opens North American Prairie Aviary.
Brookfield Zoo Chicago works with partners to release Guam kingfishers, or sihek, into the wild for the first time, marking a historic reintroduction for a species previously extinct in the wild.
Zoo launches the nation’s first Zoo and Aquarium Radiology Database to help advance veterinary practices for zoo species.
Wildlife on Wheels program begins as a pilot.
2025
Nature Stage programming resumes following multiyear hiatus, connecting guests to Ambassador Animals again.
Zoo opens James & Elizabeth Bramsen Tropical Forests with the Zoo’s family troop going outside for the first time.