Dragon

English uses one word for two creatures with different ancestries, different characters and different jobs, and almost every confused statement about dragons comes from the merger.

The European dragon is an adversary. It descends from the Greek drakon, a word meaning a large serpent and connected to a verb for looking or watching, the guardian snake of the Golden Fleece and of the apples of the Hesperides. It absorbs the chaos-serpents of the ancient Near East: Tiamat in the Enuma Elish, Leviathan in Job and Psalms, Lotan in the Ugaritic texts. Revelation 12 makes the identification explicit, calling the great dragon that ancient serpent, the devil and Satan. From there the dragon in Christian Europe is unambiguously an enemy, and the standard story is a killing: Beowulf's barrow-dragon, guarding treasure and roused by theft; Sigurd and Fafnir; Saint George, whose dragon fight is not part of the earliest accounts of the saint and reaches the West largely through the Golden Legend of Jacobus de Voragine in the thirteenth century.

The East Asian long is a benefactor. It governs rain, rivers and the sea, it is invoked in drought, and it is the emblem of imperial authority in China from the Han period, with the five-clawed dragon reserved to the emperor by law in later dynasties. Classical descriptions compose it from the parts of nine other animals, camel's head, deer's antlers, carp's scales, eagle's talons, and it is generally wingless, flying without needing them. The Japanese ryu, Korean yong and Vietnamese rong belong to the same family.

Reading them as one creature makes the East Asian dragon look like a benign variant of a monster. It is not a variant of anything.

Two explanations for dragons circulate widely, one of which has real evidence behind it and one of which does not.

The fossil explanation has genuine support. Large fossil bones have been found, recognised as belonging to something enormous, and interpreted within available categories for as long as people have dug. The classicist Adrienne Mayor documented this at length in The First Fossil Hunters, arguing that griffin traditions along the Central Asian trade routes track exposures of Protoceratops fossils, and that Greek and Roman accounts of giant bones correspond to real vertebrate deposits. In China, dragon bones, long gu, collected for medicine were, in the late nineteenth century, the route by which Shang oracle bones were discovered, and many are genuinely fossil. This does not mean dragons are fossils remembered; it means fossils were sometimes explained as dragons.

The living memory of dinosaurs explanation has none. Non-avian dinosaurs died out about sixty-six million years ago and the first anatomically modern humans appear around three hundred thousand years ago. The gap cannot be crossed by oral tradition, and no mechanism has ever been proposed for how it might be. The claim is made most often in young-earth creationist literature, where the argument runs in the opposite direction, dragon legends are offered as evidence that the gap does not exist, and it should be identified as such rather than treated as a neutral folk theory.

What dragons more probably are is a convergence. Snakes, large predators and crocodilians are genuine dangers, and a composite of serpent, cat and raptor is close to a catalogue of what could kill a person. That is enough to explain independent invention without requiring transmission or memory.