In this world, the dinosaurs didn’t go extinct. Instead, they were hiding and living inside a subterranean world. It may have shielded them from the ice age but the subterranean space is getting smaller for them to live in each day. One of the main reasons is that the dinosaurs are getting bigger and they need more space, and the topside has plenty of it. Without warning, these dinosaurs started to rise above the ground, marking their territories as they climbed up from the depths. It happened too fast and we did not have enough time to prepare.
