If we bestow but a very little attention to the economy of the animal creation we shall find manifest examples of premeditation perseverance resolution and consumate artifice in order to effect their purpose.
If I pick up a book with spaceships on the cover I want spaceships. If I see one with dragons I want there to be dragons inside the book. Proper labeling. Ethical labeling. I don't want to open up my cornflakes and find that they're full of pebbles... You need to respect the reader enough not to call it something it isn't.