When Edward thinks he's laid an egg, Nurse Lezlie had Edward watch a movie starring Doctor Fitzhamburger. The movie was in black-and-white, copyright dated MCMLII, 1953. His voice is dubbed whenever he mentions the specific species he is supposed to be explaining, but says that a dubbed is a mammal, and the film breaks before giving Edward the answer. Edward ends up even more confused, because platypus's supposedly don't lay eggs.
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