I see your points, Sapph, and all very good ones. I especially like this point"
<Another good purpose that zoos provide are those zoos that are sanctuaries and rehabilitation centers for animals that have been severely injured in the wild, and so they are visiting while in recovery, or after recovery they no longer would be able to survive in the wild, >
This serves the purpose of saving those animals who would otherwise be in great trouble should they be in contact with predators. I also like that children can learn from them and see them in the wild. That said--I prefer a zoo with as much freedom as possible, with natural surroundings and which you can observe from afar. Aside from that, I am not a fan of zoos. I have seen too many animals in small cages, some sick, and not being taken care of properly, in dirty living conditions. This was both in NJ and in NYC at the Central Park Zoo. I have seen the San Diego Zoo with the monorail and was very impressed by the natural living conditions that the animals, in particular the lions, were in.