I'd personally prefer for animals not to be in captivity, as would most people, I think. After visiting the Bronx Zoo, however (which is run by the Wildlife Conservation Society - an international program to help re-populate endangered species around the world), I've learned a lot about animal population and the dangers that they face in their natural environments. Until humans start realizing that we're the reason these amazing creatures are dying out, I guess the best that some of us can do is keep them in a safe environment where we can help them repopulate, learn more about them and let people, both young and old, see these incredible animals and develop an appreciation for them. Education and experience are the best tools that conservationists have to stop the destruction of habitat and slaughter of animals for their hides and fur. I don't think anyone can fully appreciate what it would mean to have a world without tigers unless you've been fortunate enough to see one for yourself. Zoos are certainly entertaining, but they're slyly educational, as well.