First, PETA can be somewhat... odd in their defense of animals. Second, in a perfect world, it probably IS bad to take away animals from their natural environments. However, this is not a perfect world. Animals in the wild have to contend with not only whatever they used to in the grand Circle of Life, but also hunters, poachers, and man-made ecological screw-ups. If a zoo can grant an endangered animal a safe and relatively happy life away from all of that until we, the human species, collectively get our crap together, then I'm okay with that.