Worms ... they're yucky aren't they? Not according to this enjoyable new book which reveals just how amazing the wriggly creatures really are! Worms - fun, fascinating and wriggly worms! The humble earthworm plays a significant role in the environment, as all farmers and gardeners know: it aerates the soil, composts dead matter into rich humus in which seeds can germinate and plants can grow. Children love them too - especially for their wriggliness!