---

An Approach to a Long-Established Institution and the Way it is Affected by a Changing Relationship of Humans and Non-Human Animals. In this thesis I will discuss whether zoological gardens still suit today´s zeitgeist. This question is approached by reconsidering the human animal relationship. The utilitarian theory is applied to this relationship as well as to the concept of a zoo. The history and idea behind the zoo are illustrated as are the different ways mankind faces animals. After a brief account of what happens at the zoo from a sociological point of view the concept of the modern zoo is characterised. Given their similar abilities, it is argued that non-human animals might be persons as well and should be granted more suitable rights. Linked to these animal rights are duties towards them that have a great affect on zoos and their moral justification. I will show that zoos have to fulfil certain criteria to suit today´s zeitgeist and be morally defensible. The strongest justification is conservation as I will explain.

---