The Nibblonians are an ancient race that came into existence 17 years before the Big Bang. They have extremely long life spans and incredibly large appetites, and excrete extremely dense and potent dark matter. Despite their nature, other beings find their small stature to be extremely adorable. Their arch-enemy is the Brainspawn, and believe Fry is the only one capable of stopping them due to his lack of the Delta brainwave.