Disney has changed its usual way of making films. Stereotypes seen in characters has withered; there is more subtlety to the plot line. Even someone as ignorant as me, can now observe hint of grey shade to the black and white story line. Strangely the imprints left behind in the mind of the audience are so blissfully colorful!
Zootropolis is, at one glance, a metropolis of animals of all kind. Species which have somehow matured and grown civilised after years of hunting and killing one another. They have, in fact, reached the levels of human ingenuity by simply working together, learning to live in peace and harmony.