Giant panda Pan Pan with a cake made of ice for his 30th birthday in September last year at the China Conservation and Research Centre for the Giant Panda in Dujiangyan, in south-western China's Sichuan.
Pan Pan, the world's oldest male panda with more than 130 descendants - a quarter of all the pandas bred in captivity on the planet - has died at age 31, officials said yesterday.
Giant pandas have a notoriously low reproductive rate, but Pan Pan was a prolific father.
The centre said the "hero father" had been suffering from cancer.
Pan Pan was born in the wild in Sichuan in 1985, but lived in captivity from just a few months old.