"Jia Jia was born in the wild in Sichuan, China, in 1978 and was given to Hong Kong in 1999 to mark the semi-autonomous city's handover by Britain two years earlier.
"The previous record was held by a male panda called Du Du, who was also caught in the wild and died in July 1999 aged 36 in a zoo in China's Hubei province.
"Vet Paola Martelli said Jia Jia was still 'moving about' though she suffered from cataracts and high blood pressure. 'She is sleeping more, so is doing everything less. But she is ageing gracefully, just like your grandma,' she said."