Sperm whale has the largest brain on Earth, more than five times heavier than a human's. Sperm whales can live for more than 60 years. Spermaceti (sperm oil), from which the whale derives its name, was a prime target of the whaling industry, and was sought after for use in oil lamps, lubricants, and candles. Ambergris, a solid waxy waste product sometimes present in its digestive system, is still highly valued as a fixative in perfumes, among other uses. Beachcombers look out for ambergris as flotsam. Sperm whaling was a major industry in the nineteenth century, immortalised in the novel "Moby Dick".
The Day the Earth Stood Stupid into "Pride and Prejudice". Fry breaks free of the illusion, and quickly writes a story in which he is crushed to death by a bookcase, one riddled with "plot holes and spelling errors". In accordance with the story, the giant brain announces it is leaving Earth "for no raisin" (Fry's misspelling of "reason"), and the people of Earth regain their intelligence. Other than the Nibblonians, Fry is the only other one to have any recollection of the event, and no one believes his story. Nibbler returns to his undercover position observing Earth as Leela's adorable pet. Fry's immunity to the