Colo the gorilla celebrates 59th birthday with zoo party
A gorilla believed to be the oldest living in a zoo has celebrated her 59th birthday with a party.
Western lowland gorilla Colo celebrated her birthday at the Columbus Zoo in Ohio with toys and an ice cake containing treats such as clementines and tomatoes frozen inside.
The party was streamed online so viewers could see Colo's habitat draped with colourful paper chains and watch zoo staff and visitors serenade her.
Colo was born at the Columbus Zoo in 1956 and has more than two dozen descendants at zoos across the country.
Zoo officials say the median life expectancy for female gorillas living in a zoo is about 37 years.