It might work if their were an appreciable increase in the African standard of living as well. As it is, the price of horn could be $100 per kg and there would

It might work if their were an appreciable increase in the African standard of living as well. As it is, the price of horn could be $100 per kg and there would still be someone poor enough to poach. However, it would at least reduce the drive to poach substantially, and that may be enough for the Rhino to survive. On the other hand, we may have to face the fact that in the modern world large wild animals simply aren't going to survive. It seems sad, of course, but there is really nothing super-natural about it. Many more species have gone extinct naturally than currently roam the earth. Perhaps it is for the best. There is a reason we humans left the trees and created civilization. Surviving in the wild is hard. The larger (and generally smarter) animals have some awareness of this and probably, if given a choice, would choose a "civilized" existence as well. If we make the effort to make zoos very accommodating to the needs of animals (which means putting a lot more money into them) then I think that is the future --and a generally better one for all.