Insects are creatures with three pairs of legs, Some swim, some fly; they lay millions of eggs. They don't wear their skeletons in, but out. They come in three parts. Some are bare; some have hair. Their hearts are in back; they circulate air. They smell with their feelers and taste with their feet, And there's scarcely a thing that some insect won't eat: Flowers and woodwork and books and rugs, Overcoats, people, and other bugs. When five billion trillion keep munching each day, It's a wonder the world isn't nibbled away!