zoos

Context
The claim that animals have ‘rights’ was first put forward by the Australian philosopher Peter Singer in the 1970s and has been the subject of heated and emotional debates ever since. There are many contexts in which the question of ‘animal rights’ comes up. Should we farm animals? If so by what techniques? Should we eat animals? Should we hunt and fish them? Is it morally acceptable to use animals as sources of entertainment in the context of zoos, circuses, horse racing etc.? Often the same organisations that campaign on environmental issues (e.g. Greenpeace) are also concerned for the welfare of animals: both sets of concerns derive from a commitment to the value of Nature and the Earth. The question of animal rights might well come up in a debate on biodiversity, and is one with so many political and social implications that it is also worth having in its own right. This debate is about the ethical principles at issue; the separate debates on biodiversity, veget...