Why Coyotes Howl

The city boy goes to countryside to visit his uncle. After the sun goes down, the boy hears strange, another-world howling. He gets frightened and runs to his uncle. "Uncle, uncle, there are werewolves!" "That's rubbish, boy, ain't no such thing". "'Then, there must be man-eating wolves". "No, we haven't got those buddies, either." "What is this sound, then?" the boy asks. "They are coyotes". "Coyotes? What are those?" "They look a lot like dogs. In fact, ya can consider them a kind of dog." The boy wants to find out more: "Why are they making that frightening noise?" "See, nephew, we ain't got many trees around here. We got cactuses!"