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.

Reenien, third dinosaur of the cave, became third of the 4 Reens. He is known as 'protector of blue' and as such takes over from Reenped, when he finally remembers to join Reenien at his post. Reenien, the blue protector, scouts the areas of the lake where the water dragons lie, and where his painful memories resurface. As the most emotional dinosaur, he can be found weeping into the river, remembering the abuse he suffered there. When he was rescued by the dragons of the cave he vowed never to harm another creature. His scouting of the water continues, until the fourth Reen comes to take his place.