A caterpillar is a character in Albert Says... Nature Knows Best appears in an episode "The Value of a Bird" who's a sassy and argumentative girl serves as a foil to Albert, being insulted that she's convinced he wants to eat her for breakfast. Albert quickly realizes that the caterpillar thinks he's a bird, and in her opinion, birds are "good for nothing." Albert wants to convince the caterpillar that birds are priceless and calculates their value down to the last penny. 