The zoo said she died unexpectedly and the exact cause of her death remains unknown. The zoo said the results of a full necropsy, which is an autopsy for animals, remain pending. The other Harbor seals at the zoo are being closely monitored and are currently healthy.

The Columbus Zoo and Aquarium is mourning a “cherished ambassador” today as zookeepers announced the death of harbor seal Hillie on Thursday. Hillie, 9, joined the Columbus Zoo in May 2020, quickly settling into stardom in Adventure Cove with her “spirited personality.

The Columbus Zoo and Aquarium announced the death of an 11-year-old wolverine named Zola, who was born in Sweden and had been living at the Minnesota Zoo before coming to Columbus this year.

Columbus' wolverine population has just gone down by one. Zola, an 11-year-old female wolverine that came to the Columbus Zoo and Aquarium earlier this year, was euthanized recently after workers discovered inoperable lymphoma in her abdomen,