This is a parallel running SG to Dragon.
Blackness. For so long, that is all you have known. Blackness, and tightness. You have been stuck in your egg for so long, pushing against the egg walls, and waiting. But now... you are pressed up tight against the walls, and the egg is weak. It is time to hatch.
You push out, a powerful and sinuous movement, and the egg shatters. You uncurl, extending to your hatchling length of 2 feet. You know that you should consume the eggshell. Wait... how do you know that? Because dragons have a powerful ancestral memory system. The hatchling gains the knowledge that the mother had. You know a lot about yourself, but not what color you are. From your ancestral instincts, you know what the different colors mean. You take a look at yourself, revealing yourself to be:
Red: Red dragons are the most savage and beastial and grow the largest of any dragon. With longer than average teeth, claws, and tail, they are a force to be reckoned with, even discounting their powerful fiery breath.
Blue: Blue dragons are savage, and highly territorial, moreso even than a normal dragon. They are slightly smaller than a red, but their lighting breath can be even more dangerous
Green: Green dragons are the smallest of the major breeds, but the most crafty. It is not uncommon for a continent-wide conspiracy to be led by a green dragon. They do not commonly use their breath weapon composed of deadly, poisonous fumes.
Black: Black dragons are the most cruel of the breeds. Known to toy with their pray, they relish the kill and the feeling of taunting their enemy. They breathe corrosive acid mists.
White: White dragons tend to be the most likely dragon to live in a cold clime. they are only slightly larger than a green dragon, and breathe pure cold, usually manifesting as a cloud of mist as water in the air condenses