 Some are popularised or solidified by a single particularly notable appearance in media.In any case, once they have entered the culture as widely recognized stereotypes of animals, they tend to be used both in conversation and media as a kind of shorthand for expressing particular qualities.While some authors make use of these animal stereotypes "as is", others undermine reader expectations by reversing them, developing the animal character in contrasting ways to foil expectations or create amusement, like a fastidious pig or cowardly lion.