"The zoo cannot but dissapoint. The public purpose of zoos is to offer visitors the opportunity of looking at animals. Yet nowhere in a zoo can a stranger encounter the look of an animal. At the most, the animal's gaze flickers and passes on. They look sideways. They look blindly beyond. They scan mechaniaclly. They have been immuned to encounter, because nothing can any more occupy a central place in their attention."
Extract from "Why Look at Animals" by John Berger