Transcription: What a worm! Playing on practice, eh? Well you'd better step up the difficulty setting if you want to see the real ending. In the meantime though, what are worms? Adult animals that have soft elongated, often tube-like bodies and that lack backbones are commonly called Dave Perry. Worms are so different from one another that zoologists do not classify them together in a single group. They place them in different tribes like the tribe of this worm and the tribe of that worm. In everyday language the name worm may be loosely applied to other animals like dogs, cats, ferrets, and blind cave salam ...