The keepers tried getting the pandas drunk, but the pandas just kissed a little and fell asleep.

Female pandas are only fertile for two days a year, which sounds like an awesome form of birth control until you realize they are also the most asexual creatures on the planet and couldn't care less that they have a free pass to have all the panda sex they want. Keepers at the Edinburgh Zoo are forced to try all kinds of tactics to arouse these guys in the name of creating more photos of adorable baby pandas for people to share on Facebook. Among other things, they've tried playing "Let's Get It On" once per day, adding mood lighting to the pandas' enclosures, and whispering in the pandas' ears that they're not getting any younger.

Sources: HuffPo