The hyena that shows up in Nosferatu: A Symphony of Horror (1922) is there clearly representing a HYENA, not a werewolf! In the novel, the hyena was another of Dracula's shapeshifting incarnations. Just because a previous intertitle card tells of one of his better-known forms --that of a wolf, oddly enough in the light of modern vampire lore--, it doesn't mean the viewer can't see what is going on in the screen. What is it with all the people today seeing a failed attempt by the filmmakers to portray Dracula as a werewolf?
