The dragon is a legendary creature with serpentine or otherwise reptilian traits that features in the myths of many cultures.

The two most familiar interpretations of dragons are European dragons, derived from various European folk traditions, and the unrelated Oriental dragons, derived from the Chinese dragon (lóng,龍,龙). The word "dragon" derives from Greek δράκων (drakōn), "a serpent of huge size, a python, a dragon" and that from δρακεῖν (drakein) aorist infinitive active of the verb δέρκομαι (derkomai) "I see clearly".[1]

Dragons are usually shown in modern times with a body like a huge lizard, or a snake with two pairs of lizard-type legs, and able to emit fire from their mouths. The European dragon has bat-type wings growing from its back. A dragon-like creature with no front legs is known as a wyvern. Following discovery of how pterosaurs walked on the ground, some dragons have been portrayed without front legs and using the wings as front legs pterosaur-fashion when on the ground, as in the movie Reign of Fire.

Like most mythological creatures, dragons are perceived in different ways by different cultures. Dragons are sometimes said to breathe and spit fire, poison, and/or ice. They are commonly portrayed as serpentine or reptilian, hatching from eggs and possessing typically feathered or scaly bodies. They are sometimes portrayed as having large yellow or red eyes, a feature that is the origin of the word for dragon in many cultures. They are sometimes portrayed with a row of dorsal spines, keeled scales, or leathery bat-like wings. Winged dragons are usually portrayed only in European dragons while Oriental versions of the dragon resemble large snakes. Dragons can have a variable number of legs: none, two, four, or more when it comes to early European literature. Also, some dragons in Greek literature were known to have millions of legs at a time. Modern depictions of dragons tend to be larger than their original representations, which were often smaller than humans, but grew in the myths and tales of man over the years.