About one hundred thousand years ago, something unsettled the Dragons in their Valley. Because they had stopped fighting, and had stopped flying, they started to change. Their large horns did not grow back after they fell off in the spring. And their great wings were no longer passed onto their children. Thinking a virus was infecting their home, the Dragons called to the Ethereals, hoping for guidance. It came in the form of a stone slab. The slab read, 'The time is now for a change. The Great Evolution is upon is! Embrace and adapt friends. For if you do not, you will suffer.' Understanding the need to adapt, the Dragons immediately did so. The Great Evolution was over one hundred years later, when the Dragons were done changing. Their sleek bodies had shrunk and became large and round. Their once elegant horns lay in a pile outside the Valley. The great wings that once graced their backs were gone, leaving nothing but a row of round spines.
Sometimes, a different Dragon comes along or is born with genetic deformities. These deformities, called mtuations, are reminiscent of before The Great Evolution.