Let us go back to Jurassic Period , It was Dinos' world. That time ,the Earth was covered with huge plants ,it was worm and moist .
There were hundreds kinds of different Dinosaurs .Some of them were so big just like a building ,some were suitable size just like the humen's size .some were so small just like cats' size .
Dinosaurs obviously were the masters of the world in the Jurassic Period .
Shall we really go back to Jurassic period ?
