Colo, the first gorilla born in captivity, died at the Columbus Zoo in 2017 at age 61. At the time of her death, she was the oldest-known gorilla in the world. In the early hours of Jan.

The western lowland gorilla died in her sleep in her enclosure at the Columbus Zoo and Aquarium. Life expectancy for gorillas is about 50 years, so Colo beat the odds. At her passing, she had just ...