The pandas mated for a record-breaking seven minutes and 45 seconds . Lu Lu has been bestowed the nickname 'The Enduring Brother ' by admirers . A panda cub is born at Chengdu Zoo in China on June 28, 2014 - one of only two cubs to survive after being separated from their mother Mei Xiang during her first litter last year.
The pandas mated for a record-breaking seven minutes and 45 seconds . Lu Lu has been bestowed the nickname 'The Enduring Brother ' by admirers . Lothario panda 'lasts longer in bed than the average American male '