Nation Choomba, one of the world’s oldest living gorillas, euthanized at 59-years-old January 14, 2022 Asha C. Gilbert, USA TODAY Comments Off on Choomba, one of the world’s oldest living gorillas, euthanized at 59-years-old Zoo Atlanta is mourning the death of Choomba, a gorilla, who was euthanized on Thursday at 59-years-old.