rock python, rock snake, Python sebae
['black-footed ferret, ferret, Mustela nigripes', 'knot', 'king crab, Alaska crab, Alaskan king crab, Alaska king crab, Paralithodes camtschatica', 'feather boa, boa', 'projectile, missile', 'leopard, Panthera pardus', 'chambered nautilus, pearly nautilus, nautilus']