The Frill-necked Lizard (Chlamydosaurus kingii), also known as the Frilled Lizard or Frilled Dragon, is so called because of the large ruff of skin which usually lies folded back against its head and neck. The neck frill is supported by long spines of cartilage which are connected to the jaw bones. When the lizard is frightened, it gapes its mouth showing a bright pink or yellow lining, and the frill flares out, displaying bright orange and...