The family of former longtime Columbus Zoo and Aquarium director Jack Hanna announced Wednesday that Hanna has been diagnosed with dementia.

Hanna previously served as the Columbus Zoo’s director from 1978 to 1992 before becoming Director Emeritus, retiring at the end of 2020.

His daughters Kathaleen, Suzanne and Julie Hanna issued the following statement:

“Today, we reach out to share some personal Hanna Family news. Doctors have diagnosed our dad, Jack Hanna, with dementia, now believed to be Alzheimer's disease. His condition has progressed much faster in the last few months than any of us could have anticipated. Sadly, Dad is no longer able to participate in public life as he used to, where people all over the world watched, learned and laughed alongside him.  

“A passion for wildlife conservation and education has been at the core of who our dad is and everything he has accomplished with the help of so many. He has spent his life connecting people and wildlife because he has always believed that having people see and experience animals is key to engaging them in more impactful conservation efforts. He's always said, “’ou have to touch the heart to teach the mind.’ Even though Dad is no longer able to travel and work in the same way, we know that his infectious enthusiasm has touched many hearts and will continue to be his legacy. 

The Columbus Zoo and Aquarium has been a major part of our lives since we moved to Central Ohio as young girls in 1978. From day one, Dad advocated for improved wildlife habitats and focused on connecting the community with animals. After he left his active management role as Executive Director in 1992, he continued to be a spokesperson for the zoo until his retirement last year.

“Dad engaged with millions of households through his media appearances and weekly television programs – including ‘Animal Adventures,’ ‘Into the Wild’ and ‘Wild Countdown.’ This allowed him to bring an unparalleled level of awareness to the importance of global conservation given the unrelenting pressures on the natural environment. To say that we are abundantly proud to be his daughters is an understatement.

“Dad loves the Columbus Zoo and The Wilds and has great appreciation for the hundreds of employees and volunteers, who work extremely hard each day to care for the animals and ensure an incredible experience for the families who visit. We share his dedication to the Central Ohio community and will continue to support the Columbus Zoo and conservation efforts around the world. 

“Our mom – Suzi – has been by his side for 53 years in every corner of the world. She continues to be his rock (and ours, too). We have great respect and admiration for Mom as we move through not only this difficult time with Dad, but also Julie's continued lifelong challenges from her childhood leukemia, as she is currently recovering from major surgery. 

“While Dad's health has deteriorated quickly, we can assure you that his great sense of humor continues to shine through. And yes – he still wears his khakis at home.

“To keep everyone safe in light of COVID-19 restrictions, we are asking for privacy, which is ironic given Dad's love of interacting with people. We are grateful that the many hearts he's touched over the years are with him during this journey, which gives us strength.  

“Thank you, and we appreciate your understanding.”

Ohio Governor Mike DeWine also released the following comments following the Hanna family’s announcement Wednesday:

“Fran and I were very sad to learn of Jack Hanna’s diagnosis of Alzheimer’s that his family so bravely shared with Ohio and the world today.   

“Over the years, Fran and I have had the opportunity to take our kids and grandkids to the Columbus Zoo and Aquarium and The Wilds. When we were there with Jack, we were so fortunate to experience his passion for animals and the natural world.

“Along with our fellow Ohioans, we wish Jack, Suzi and their daughters our best as they navigate the challenges of this disease and will be keeping them in our prayers.”