Can you "speak Whale"?

As I said in an earlier post, Andrew has been watching Finding Nemo a lot lately. Well, apparently he has learned to "speak Whale" from watching it. Or as he says "cow, moo" or "elephant bbbrrrrruuuuuhhhhh". He keeps looking at me and making whale noises with all the inflections and everything. I can't help but laugh. How come he could pick up "Whale" in like 5 days and yet still can barely speak English? ;)