Dragon Drawing

The Greek and Latin term referred to any great serpent, not necessarily mythological, and this usage was also current in English up to the 18th century. Today the great komodo lizard Varanus komodoensis is also known in English as the Komodo dragon. The King James Bible uses the words "serpent", "dragon" and "Devil" in a fairly interchangeable manner.
The association of the serpent with a monstrous opponent overcome by a heroic deity has its roots in the mythology of the Ancient Near East, including Canaanite (Hebrew, Ugaritic), Hittite and Mesopotamian. The Chaoskampf motif entered Greek mythology and ultimately Christian mythology, although the serpent motif may already be part of prehistoric Indo-European mythology as well, based on comparative evidence of Indic and Germanic material.
The "European dragon" (and its Near Eastern and Indic cognates) myth has quite different characteristics and origins from those of the Chinese dragon.
Dinosaur and mammalian fossils were occasionally mistaken for the bones of dragons and other mythological creature; for example, a discovery in 300 BC in Wucheng, Sichuan, China, was labeled as such by Chang Qu. Adrienne Mayor has written on the subject of fossils as the inspiration for myths in her book The First Fossil Hunters, and in an entry in the Encyclopedia of Geology she wrote: "Fossil remains generated a variety of geomyths speculating on the creatures' identity and cause of their destruction. Many ancient cultures, from China and India to Greece, America, and Australia, told tales of dragons, monsters, and giant heroes to account for fossils of animals they had never seen alive." In Australia, stories of such creatures may have referred to the land crocodiles, Quinkana sp., a terrestrial crocodile which grew from 5 to possibly 7 metres in length, or the 4 tonne monitor lizard Varanus priscus (formerly Megalania prisca) a giant, carnivorous goanna that might have grown to as long as 7 metres, and weighed up to 1,940 kilograms, or rainbow serpents (possibly Wonambi naracoortensis) that were part of the extinct megafauna of that continent..