Dragons are a group of highly diverse species of large, endothermic creatures. They are recognizable by their large, scaled bodies, egg-laying reproduction, and a second stomach chamber that allows them to breathe fire or spit acid. Dragons are always civilized, and their subcategory is pure.
Dragons can be found all around the globe except for near the north and south poles. Their appearance can vary wildly, from size to color, to having keratin feathers on their wings or keratin manes down their spines and along their jawline. Certain dragon species even have physical or magical adaptations to help them swim underwater, although no dragon has gills.
Despite this, dragons have certain characteristics that always appear in every specie. One, dragons always have five digits on each foot. On the hands, these digits include an opposable thumb. On the hindfeet, there is a dew claw or another opposable thumb, depending on the specie. If the dragon has wings (depending on the type), these wings have five wing fingers.
Dragons always have scales, although the size, texture, and color of these scales vary. Some dragons have thick, bony scales that have texture of rough rock, while other species have think, small, smooth scales like fish.
There are three different types of dragons, each with unique physical features.
Quadruped, Winged Dragons
The most common type of dragon, these dragons have a set of forearms, a set of strong, muscular hindlegs, and a pair of wings situated by above the shoulders. These membrane wings have five wing fingers, one of which may be a thumb of varying length. The length of their necks, bodies, tails, and the shape of their wings vary massively.
Species of quadruped, winged dragons:
Wyvern dragons are instantly recognizable by their two hindlegs, one set of wings, and shorter tails. They are bipedal, and some species use their wings to create a quadruped gait. Their membrane wings have five wing fingers, one of which may be a thumb of varying length. This thumb is opposable in some species.
Quadruped, Wingless Dragons
These dragons have forearms and hindlegs, but lack wings. They often have long necks, bodies, and tails. Although these dragons do not have wings, some species fly with aerokinesis. Other species may instead find themselves well suited to spending long periods of time in the water.