Article Photos: Oldest of zoo gorillas turns 56 in central Ohio 4/4

This 2011 photo provided by the Columbus Zoo and Aquarium shows Colo. Colo, the first gorilla born in a zoo, is turning 56 Saturday, Dec. 22, 2012, and celebrating the birthday with some special treats at her central Ohio home. Colo is the oldest gorilla in any zoo. She was born at the Columbus Zoo and Aquarium in 1956. (AP Photo/Columbus Zoo and Aquarium, Grahm S. Jones)