World's oldest gorilla turns 60

The world's oldest gorilla turned 60 this week - and she celebrated in style.

Colo was the first gorilla to be born in captivity anywhere in the world, when she arrived at the Columbus Zoo in Ohio in 1956.

She has outlived the median life expectancy for female gorillas in human care by over two decades - as well as outliving Harambe, the 181kg gorilla who was shot after a 4-year-old boy fell into the animal's enclosure.

Friends and fans flocked to visit Colo and sing "Happy Birthday", and Colo's keepers marked the occasion by decorating her cage, and gave her vegetable cake and presents.