Dallas Zoo is saddened to announce that 7-year-old male hippo Adhama passed away suddenly on Tuesday evening.
The hippo keepers and our veterinary team had been monitoring Adhama’s health since late last week, after observing some lethargy and a diminished appetite. Adhama spent Monday and Tuesday behind the scenes under observation and resting, but there was nothing to indicate a serious issue. After hours on Tuesday evening, keepers observed via closed-circuit video that Adhama seemed to be non-responsive, and our animal care team responded immediately. Unfortunately, the team found that he had passed away suddenly with no external signs of stress or trauma.
Preliminary findings from the veterinary team indicate severe enteritis, which is an acute inflammation of the intestine. According to the veterinary team, given the condition of Adhama’s organs and his fat reserves, this does not appear to have been a long-term illness. The team is continuing to study the situation to learn more, but given the lack of significant symptoms, the team is confident there’s nothing they would have done differently.
“From the time he arrived here at the Dallas Zoo, Adhama captivated us all with his curious nature and larger-than-life personality. He was a wonderful ambassador as we opened our Simmons Hippo Outpost and reintroduced hippos to Dallas last year,” said Gregg Hudson, President and CEO of the Dallas Zoo. “Our entire team is understandably shaken, given the suddenness of Adhama’s passing. Please keep our entire staff in your thoughts during this difficult time.”
Adhama and Boipelo came to the Dallas Zoo in March 2017 (from the Los Angeles Zoo and Botanical Gardens and Albuquerque Zoo, respectively), ahead of the opening of the Zoo’s Simmons Hippo Outpost in April. These two hippos were matched on a breeding recommendation through the Association of Zoos and Aquariums’ Species Survival Plan.
The two quickly bonded and became an adorable pair, enjoying lounging together on the habitat’s sand beach or taking naps in the 120,000-gallon pool.
“We know so many people in our extended Zoo family share in our sadness since we have enjoyed watching Adhama and Boipelo as their personalities and relationship developed over these last 18-plus months,” said Hudson.
Boipelo gave birth to a calf in February 2018, but the calf did not survive. The hippo keepers report that Boipelo is subdued in the initial hours since Adhama’s passing. The team is focused on ensuring she is maintaining as much of a routine as possible in spite of the loss of her mate. She will be given access to the habitat starting today, but the Zoo staff will follow her lead on her day-to-day availability.
The Zoo will continue to provide updates as more information is available.