Very nice, but the chinese will always own the pandas, and any offsprings... As it has happened before, in case of bit of an argument between Governments, they will demand the animals back and there is nothing anyone can do about it.
What if we just say "Bugger off - we're the ones who've looked after them, so we're keeping them."...? And can I just put in a plug for the red panda, which is a much more loveable and active species, but which is also coming under increasing threat for various reasons (one of which, according to Wikipedia, is "inbreeding depression" )