Dragons
Majestic. Powerful. Cruel. Curious. Vain. Patient. All of these words apply in different amount for each dragon, because each and every one of them are unique.
There are few of them left. Not sure what happened to most of them but it seems unlikely that they'd all die from being killed by lesser beings.
Drakes
Drakes are the natural state of an evolved "dragon" and unless you’ve met a real one it’s easy to mistake them for the real deal. Many drakes use this to their advantage. It’s believed that the famed dragon slayer Ser Gryff mostly faced off against drakes.