Some people don't have any sense. I wouldn't let my dog, if I had a dog, which I don't, this close to the chompers of a T. Rex. But of course it's all fake, unless the scientists at nearby Washington University have made a remarkable breakthrough. It's been a couple of weeks now but we took Ellie to this new thing at the zoo they call Dinoraurus. There are a number of these creatures that can shake around a bit and make fearsome noises. Kids love it.