
Adhama swims in the waterhole in the new Simmons Hippo Outpost
It’s finally ready! Our $14 million, 2.1-acre Simmons Hippo Outpost, an immersive African waterhole habitat that includes an underwater viewing area, will open on Friday, April 28.
An official ribbon-cutting at 10:30 a.m. will kick off the three-day, Simmons Hippos Outpost Opening Weekend, featuring special activities and giveaways.
“This habitat has exceeded our highest hopes,” said Gregg Hudson, Dallas Zoo’s president and CEO. “We’re confident that being face-to-face with a submerged, 3,000-pound hippo will be a highlight for our guests. Even more importantly, this new experience will help our community better understand the critical need for conservation of all species and wild spaces.”
“The Dallas Zoo has once again set the standard for today’s accredited zoological parks,” Dallas Mayor Mike Rawlings said. “This project is the latest example of how successful public-private partnerships can be, especially when supported by our city’s generous philanthropists. The new Simmons Hippo Outpost brings yet another level of excellence to this world-class facility just three miles from downtown.”

Boipelo explores underwater at the viewing window
Special Simmons Hippo Outpost Opening Weekend events include:
- The first 500 guests in the zoo each day (Friday-Sunday) will receive a squishy hippo toy
- Unveiling of a hippo-themed “B-G” statue, part of the popular series from VisitDallas
- #DallasZooHippos photo opportunities with a life-sized ceramic hippo and a costumed hippo
- An okapi keeper chat at 2:15 p.m. and hippo keeper chats at 11:15 a.m. 2:30 p.m. every day.
- Create hippo-related crafts at the Highland Hippo Hut
- Take home special Simmons Hippo Outpost trading cards
Reunion Tower also will light up the Dallas skyline Friday at dusk with a special light show celebrating the hippo habitat opening.
The new habitat, home to Adhama (uh-DAHM-a) and Boipelo (BOY-pa-lo), includes a 24-foot by 8-foot viewing window that brings guests eye-to-nostril with the Nile hippos as they explore their 120,000-gallon waterhole. Such close contact will help us teach millions of guests about conservation efforts on behalf of the world’s third-largest land mammal.
The Simmons Hippo Outpost will be our first major exhibit since the award-winning Giants of the Savanna opened in 2010.
“This remarkable exhibit is a perfect complement to the Giants of the Savanna, a game-changing habitat that helped kick off the ongoing renaissance here at the Dallas Zoo,” Hudson said. “More than a million guests a year visit us to learn about animals and conservation efforts to protect them, and bringing hippos back has been one of their most consistent requests.”
The surprisingly agile, super-sized “river horses” can be observed from multiple vantage points in the exhibit. An upper-level habitat provides an enhanced home for our world-renowned okapi herd. The new habitats are visible from the elevated Wilds of Africa Adventure Safari monorail, and red river hogs will also join the habitat in time.

Adhama walks on the shore
This habitat opening marks the return of okapi, an endangered species that we have worked with for more than a half century. Our five okapi, often called “forest giraffes” in their native Congo, have been off exhibit during construction. The okapi will return with easier visibility in two habitats, plus a special encounter area where guests can meet the stunning animals up-close during the daily 2:15 p.m. keeper chat.
In our 50-year history of caring for okapi, the animal team has welcomed 36 calves. With one of the most successful okapi breeding records of any zoo, our staff have continuously contributed to research, promoting improved husbandry practices for this charismatic species. About 75 percent of all okapi in the Association of Zoos & Aquariums’ Okapi Species Survival Plan (SSP) are related to our offspring.
We have also played a key role in okapi conservation in the Dominican Republic of Congo in Africa by helping fund the Okapi Conservation Project. Now, our guests can get closer than ever before to this majestic, endangered species.
The Simmons Hippo Outpost campaign was funded solely with private donations, beginning with a $5 million grant from the Harold Simmons Foundation launching the project. Additional donations included:
- Highland Capital Management LP, $1 million: This donation built the 4,485-square-foot Highland Hippo Hut for special educational displays and private events.
- Diane and Hal Brierley, $1 million: The longtime philanthropists and Dallas Zoo supporters built the Hippo Encounter underwater viewing area, where zookeeper talks also will be held.
- Eugene McDermott Foundation, $800,000: Longtime supporters of the Dallas Zoo.
- A public personalized brick campaign, which honors our community supporters as a permanent part of the exhibit.
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