Elephant painting

I found this to be absolutely amazing. Being a natural sceptic, I checked with Snopes.com  (the use of perspective on the legs suggested human input) It isn't a fake (which is what I first wondered), though the elephants are trained. But even so, what age would a human need to be (even with training) to be able to draw that well? What does this say about the intelligent of elephants? PS. Can anyone tell me how to embed the clip in my journal?