We can see ancient references to dragon-like creatures in European, Asian and also many other civilizations. Did these civilizations come up with the concept of dragons independently and just coincidentally similar? Or does the entire myth have roots in one place and spread? Of all the creatures you can come up with, to think all these civilizations came up with the same thing independently is curious.
In even more ancient mythology, serpents were very often a target or myths. Why the cross-culture significance of serpents and serpent-like creatures like dragons?