After decades in concrete and tiles, zoo animals are now surrounded by painting and stage construction. “Humans are now guests in the world of animals,” as a zoo director has put it. This simulation, similar to an illusionistic proscenium stage, probably calms the temporary guests more than it could help the permanent residents. It is the visitor an "immersive experience" is created for. Neither does the animal's space get larger by spatial effect, nor does the illusion of wilderness prevent their stereotypic behaviour referred to as zoochosis.