Finally, after much feeding, the baby has grown into a full Dino! Dinos can eat almost anything, including things with spikes. In order to do so, they must have very tough stomachs. Green Dinos are the only type of Dino that is able to walk on two legs. This frees up their front two legs, which they use to catch and eat fish.

Reengren, Eldest of the 4 Reens, or protectors. As Reengren means Protector of Green, he has appointed himself chief scout of the cave, running about wildly on his two legs, never stopping until his shift is over. At that time he is taken over by the second Reen. He is constantly hungry, and so often eats while running, picking up whatever he can find. The name Reen carries on through all 4 scouts of the cave, and they take their duty very seriously. They believe they work hard as they were taken in by the dragons of the cave, who cared for and nurtured them as their own.