Colo was born at the Columbus Zoo and Aquarium in 1956.
The Association of Zoos and Aquariums said a female western lowland gorilla named Colo is the oldest gorilla in any zoo. She was born at the Columbus Zoo and Aquarium in 1956.
The zoo marked Colo's birthday Saturday with a cake specially prepared for her and other gifts, including her favorite food, tomatoes. Zoo guests sang "Happy Birthday to You."
Colo is a mother of three. Her family tree includes more than two dozen descendants living at zoos across the country.
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