Chapter 21: Vaxasaurians
These guys are top notch for a reason. In dino world, bigger= better. They would need to eat a lot of food to be able to grow to 5 times their regular size. (Via cellular reproduction, because the show's definition is HOKUM! No creature that isn't like an Anodite, Celestialsapien, or Paradox can't use dimensional displacement. Then again, this is written for kids who aren't supposed to understand lame name puns, or understand that NRG=energy, not Nuclear Reaction Generator.)They also waste that energy by shrinking back down. But, at that size, they need less food and other things to sustain body size. I believe them to live in groups. They most likely eat grass and leaves. They are the toughest creatures on Terradino, and have intelligence, as well as using their powers as peace keepers. It is possible that they developed intelligence and strength to avoid predators, and defended others, establishing themselves as peacekeepers.