dementia, his family has announced. Hanna, 74, served as director of the Columbus Zoo in Ohio between 1978 and 1992, and remained as the organisation’s director emeritus.
He continued serving as a spokesperson for the zoo until 2020, when he retired from those duties. Hanna is also known to the public through his live animal demonstrations with talk show hosts such as Johnny Carson, David Letterman, and James Corden.
Under his tenure as director, the Columbus Zoo’s attendance and profile increased considerably. In a news release shared on Wednesday by The Associated Press, Hanna’s family said it is believed that Hanna has Alzheimer’s disease, and that the condition has progressed quickly over the past few months.
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