A professor invents a growth serum and the few enlarged animals escape. A newspaper reporter is on the story, but is more interested in courting the professor's niece.; Parody of mail-order school ads, with an elephant sending away to the Serengeti Institute of Prehensile Proboscology for information on how to grow a trunk.; A caveman makes an animal skin holder for his stone tools.; A boy takes an aging dog behind the barn to shoot it, but the dog shoots the boy instead.; Sarah Lee marries a two-headed man, then finds the rest of his family also has multiple heads.; Cheech uses the stuffed corpse of his former apprentice as the star of a money-making enterprise.; The boy goes to a girl's party. She seems interested in seeing more of him, but he's not sure how he feels about the situation.; Alex is lying in a coffin, dying, and his doctor and the funeral home director are planning how to publicize the event when he dies. Artist Rodriguez ruins their plans by invading the funeral home and shooting everyone.; Parody of the Charles Atlas comic strip ads, with a mouse evolving into a fanged bat to take care of a bullying lizard.; Pepsi and Bonnie are trying on clothes at a boutique, but when they see two drag queens trying on the same styles, decide that they will shop elsewhere.; Jill discusses her previous boyfriends.; While waiting around after Steve locks his keys in his car, Harold and Carole reveal that they are getting married.; With their roommates Harold and Carole leaving to get married, Jill and Steve consider moving in with each other.