Finally, we know why the world has been so grumpy all this time: its pandas are in a foul mood because they can't get their own way.

And how do we deduce that? Because, we are told, pandas are misunderstood, in fact not understood at all - until now.

As revealed exclusively by this newspaper on Friday, and coincidentally by dozens of other news outlets - the world is a sucker for panda stories - the China Conservation and Research Center for the Giant Panda in Sichuan province has decoded panda language.