The Simpsons walk along a zoo, where Homer refuses to give Bart a peanut. Then the family sees a brood of monkeys who look identical to the Simpsons. However, Bart is the only one to realize the monkeys' resemblance to his own brood. After Bart sympathizes with his monkey look-alike, Homer teases the monkeys with a bag of peanuts. Despite his family's pleas for him to stop, Homer continues his teasing. In response, the monkeys throw their feces at him. This pushes Homer to drive home with his family, as he is fed up with the monkeys' antics. However, he and Marge soon realize that Bart and his monkey look-alike have switched places. Back in the zoo, Bart is fed a banana by his new family.
—Thomas Eric Palof