The Zoo is now open! All guests, including Zoo members, must now reserve free, timed tickets prior to visiting.

Review the Zoo’s reopening guidelines and make a reservation

We are excited to welcome you back to the Saint Louis Zoo!  When you are ready to visit, we're more than ready for you! Until then we are happy to continue to #BringTheStlZooToYou for you stay connected to your Zoo. 

Follow us at FacebookTwitter and Instagram and check out our new rotating animal webcams at Live Webcams!

Don't forget our STLZOOm live webinars for school audiences  thanks to our Saint Louis Zoo Educators!

Our staff remain dedicated to the animals in our care. Your support is vital to our future. Please consider making a contribution to our Critical Animal Care Fund

September 16, 2020

Utamu: Path To Motherhood Part IV

"Being a Chimpanzee Mom"

The length of a chimpanzee pregnancy is just slightly shorter than that of a human pregnancy at 8 months. Chimpanzee moms are very hands-on for the first several years of the infant’s life and typically have intervals of 4 to 6 years between births because of this. Even when a chimpanzee mother has another baby, the older siblings will typically still stay close to mom, giving the juvenile female offspring the opportunity to learn important skills about caring for infants that will aid them with their own offspring in the future. 

Chimpanzee babies will typically nurse from their mother for up to 5 years, even after regularly eating solid foods. Chimpanzees are born with very strong grasping abilities, as they need to cling to their mother’s belly as she climbs and moves around. As they get older they will transition to riding on their mom’s back. Eventually they will start to venture off of mom to explore and play, but always staying in close range and still climbing on her back for a ride when moving from place to place.

Being a chimpanzee mom is a very important and difficult job. They may have help from other members of the troop but they are the main caretaker and are responsible for keeping their offspring safe. Mother chimpanzees are also responsible for teaching their offspring what food to eat, how to act in the social hierarchy, how to use tools, how to build nests, and a lot of other vital information that will help the young chimpanzee survive and thrive. We are looking forward to seeing what an amazing mom Utamu will be!

Continue to follow Utamu: Path to Motherhood at to learn more about Utamu’s pregnancy and the work being done by Saint Louis Zoo staff in preparation for the upcoming birth.

Boo at the Zoo

The Boo is back and this year there’s more to see and more time to see it in! Join us from 5 to 8:30 p.m. October 16-30 for some Halloween fun during the family-friendly, non-scary Boo at the Zoo presented by SSM Health Cardinal Glennon Children’s Hospital!  This year, your Boo at the Zoo ticket price also includes entrance to the Mary Ann Lee Conservation Carousel and Stingrays at Caribbean Cove presented by SSM Health.  Visit the Charles H. Hoessle Herpetarium and the Bayer Insectarium, too. Attendees can enjoy more of the Zoo, plus special autumn menus at our restaurants and stands and more! Advance tickets are required. Tickets go on sale October 1. For more information visit: #StlZoo #FallAtTheZoo #StlZooBoo