First zoo-born gorilla celebrates 56th birthday
The first gorilla born at a zoo has celebrated her 56th birthday.
Colo, who was born in 1956, resides in Columbus Zoo, Ohio, was treated to a cake made by her zookeepers, as well as her regular favourite snack - tomatoes - and she was given gifts which she managed to open herself.
Zoo visitors even sang 'Happy Birthday' to the western lowland gorilla, who has given birth to three children at the zoo.
