London Zoo's oldest female gorilla Zaire enjoys her birthday cake at London Zoo in London, Britain, on Oct. 23, 2014. Runner-up on this year's Great British Bake Off, Richard Burr created special birthday cake for Zaire to celebrate her 40th birthday, including sugar-free jelly, apples, carrots and walnuts, in her favorite pink colour. Zaire was born in the 1974 and arrived in London in 1984. (Xinhua/Han Yan)