Dragons

Their size suggests they have a way of gaining nourishment from unusual or magical sources given their diet. While they do ingest a large amount of calories it should not be enough for their overall size. Their ability to fly as large as they get is also unusual.
  Scale color is mythologically tied to their abilities, but the reality is that their color relates no real information about their abilities or temperament.
  Adult dragon's bodies seem to alter the world around them, so when multiple dragons get together storms often arise. Ancient Dragons often leave permanent effects in the world where they lair. Some of these locations are used by churches or other organizations as sources of power.
  It is beleived they are the first to have develeopd magical sleep. Both elves and dragons now utalize a special form of deep meditative sleep beleived to strengthen them and extend their lives. The Dragon Dream is what is called for Dragons, while the elfsleep is the name for elves.

They reproduce slowly and are highly independent. This means that social behavior and pressure can affect their reproductive rate significantly.

Eggs are laid by a mother dragon and vary in size from a basketball to a beachball. They are soft shelled typically, though some variants are harder shelled.
  Child Dragons are the size of a large dog or a pony. They slowly grow to a young age dragon by the age of 25. These young dragons are the size of large horses. Adult dragons grow to ten feet tall while standing on four legs, and are considered adults till about 200 years old. Once over 200 years their growth goes in spurts that vary by individual dragon.
  The change from Young to full Adulthood seems to involve a deep sleep inside some form of chrysalis. This is a vulnerable time for a dragon, and it will prepare defenses and a good hiding place for the duration of the transformation. Scholars argue how long it takes, though most agree probably a year at the least.
  Old dragons are considered those over 400 years old, while ancient dragons are over 600 years old. Some elder wyrms are said to be a thousand years old.

Highly independent, loner mentality is common among dragons.

Anywhere you can think of a dragon probably lives there.

Long and complicated names, hard to pronounce without a dragon's vocal cords tend to be common. Though younger dragons have usually shorter names. While child dragons are named by parents, the remainder will be adopted by the dragon themselves.

Historically both the first and second dragon imperium were ruled by dragons, as well as numerous industries, adventuring organizations, non-profit, and mercenary companies

They believe themselves as a the superior species. And just about every dragon thinks they individually are the superior of their own species. This leads them to be hard to work with as groups.