Dragon
From Twilight Wiki
A dragon is a reptilian creature, usually winged, with magical or unusual abilities.
Dragons were one of the first intelligent life forms to appear in Azeroth. It is not clear whether the titans created them or if they somehow evolved prior to the titans' arrival. At one time, their numbers were uncountable, but in present-day Azeroth there are very few left. Originally, there were many different dragonflights, with many different colors to be seen. The five most influential, however, were the reds, the greens, the bronze, the blacks, and the blues, and eventually most (if not all) of the other flights disappeared.
Chosen by the titans, each of the five dragonflights were given domain over a certain aspect of the world, ranging from the earth to time itself. During the War of the Ancients, the dragonflights sought to fulfill their duty and strike against the invading Burning Legion. Over time, the dragons have endured much hardship and only a handful still remain, hostile to all that may tamper with the titans' creations.
The dragons of Azeroth are far more intelligent even than the humans who hunt them; they struggle to reconcile their metaphysical nature with the reality of the savage world they inhabit. While each dragon is a powerful entity, dragons also represent the origins of the world and were given care over various parts of Azeroth’s creation since time immemorial. Today, the dragons still remember their original natures and attempt to use their powers to continue their original purposes: for some, to shape stone and raise mountains; for others, to protect the forests or expand the realm of magic.
The dragons of Azeroth reach maturity after a mere hundred years have passed. They are very cunning and magical, using spells to complement their powerful physical capacity. Because each creature has an intimate connection with the world around it, the death of a dragon is never a simple thing; it is a metaphysical event, driven by the creature’s natural connection to the spirit of the world. A dragon’s death can cause massive upheaval in the natural surroundings — earthquakes, surface lava explosions, a new lake flooding forth from a sudden crack in the earth‘s crust, and so on. Even young dragons, those who have not established as close a bond to the spiritual world, still make ripples in the fabric of reality when they die. Although these ripples are not always seen or felt by other races, a young dragon’s death nonetheless garners the attention of other dragons in the area — and creatures particularly attuned to the natural state of being that surrounds them.
When proto-dragons were rediscovered as the mounts of the vrykul, it could easily be seen that they bore a striking resemblance to many kinds of carnivorous dinosaurs. This may be coincidence, or it could link dinosaurs to dragons in evolution.