Fruit fly

The Eleventh Doctor claimed that Hoppledom Six was home to a species of fruit fly that only lived for twenty minutes and didn't even mate for life. (TV: The Pandorica Opens)

The Great Hoppledomian Fruit Fly War was a war fought amongst fruit flies on Hoppledom Six on 8 June, 6492. The war would last for fifty generations, beginning at 10am, and concluding at 3.30pm that same afternoon. (PROSE: Time Traveller's Diary)