Zoos can do quite a lot. In the first place, a great many species’ only chance is parks and reserves, and those parks and reserves are going to have to be managed intensively, for disease, for genetics, demographics and so on. In other words, they’re all going to become zoos. Zoos can help them, zoos know the techniques. They’re continuing to develop them in their scientific work. So zoos need to make their special skills available to the management of protected areas. Then there are a few species which can be sustained for short periods. And I say short periods, I mean a century or less, in zoos, and then released that period of time when they are being bred in captivity, like the whooping crane of the condor, very good examples, gives one a chance to restore land, to develop areas where a species may go and so on.