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. Yellow Dinos have very long necks, which they use to reach and eat food located high off the ground.

Grocario is a kind dinosaur who wishes to do no harm. He only fights if it is necessary for his or someone's survival. He'll sometimes wander into a village, thinking the people there will become his friends, even though they usually don't. He considers Bawk a Bawk his only friend.

Grocario hatched in a nest full of other species of dragons. The parents had mistaken his egg for a dragon egg. The other baby dragons mocked him because he was not actually a dragon, even when the parents told them to stop. He eventually ran away, never hearing from them again. He came across a chicken egg while running, and thought it had another dinosaur in it. He still believes Bawk a Bawk is a dinosaur to this day. He continues to search for a permanent home and new friends with Bawk a Bawk.