Hearing Ducky's comment about what Spike thought of parks, Steven said, "Parks are places meant only for relaxing and where kids can sometimes have fun, like you and your friends already do. But don't worry, there are plenty of other places in the city where you can find some food."
Steven started by answering Diver's question. "Well... throughout most of history, Rainbowfaces and non-Rainbowface dinosaurs didn't really get along that well, and usually it was the non-Rainbowface dinosaurs who suffered the most, especially the meat-eating dinosaurs. Fortunately, for us, the time period of this city here is a time when the coexistence of Rainbowfaces and non-Rainbowfaces was at its most peaceful. In other words, if there's any time in history you would rather be in, this is the one."
Steven then answered Cyrix's question. "That's a rather interesting story. You see, when the Rainbowfaces left the planet forever, they unintentionally left a few of their own kind behind. It took centuries until the ones who left were able to come back, but by that time it was too late to make such an attempt. They, your ancestors, had adapted, like all the other dinosaurs, to life without our civilization and had since forgotten about the past."
The last question Steven answered was one he didn't want to, but knew he had no choice. "I'll be honest with you all, my friend and I know so many things, it would literally take years for you to understand most of them. But I honestly don't know of any phenomenon that would cause the Great Valley to be suddenly replaced by what was here ten thousand years ago. If I don't know how all this happened, I certainly have no idea how we could possibly reverse this. I am very sorry, but I'm afraid there's a good chance we may never see the Great Valley ever again."