Could it be dragons were in fact real? What if they just suddenly got extinct? With a little help from knights and other people, that is... I could imagine a huge dragon could be a real nuissance to any kingdom... But of course, the question arises: is it physically possible for a creature to breathe fire? Aren't all reptiles ectothermic? Hold on... dinosaurs were endothermic, right? Could dragons have actually been dinosaurs of sorts? OR descendants thereof -- like birds? Could a huge creature like that get airborne? Maybe they really weren't all that big? You would think that had they really existed, you would see a lot of evidence of that in historic accounts, right? But hold on, we do! There are all sorts of tales and legends. That doesn't make them true, though, does it?
...Does any of this make sense?
Oh, and I just recently found this in Leonardo da Vinci's notes...
The dragon flings itself under the elephant's body, and
with its tail it ties its legs; with its wings and with its arms it
also clings round its ribs and cuts its throat with its teeth, and
the elephant falls upon it and the dragon is burst. Thus, in its
death it is revenged on its foe.
These go in companies together, and they twine themselves after the
manner of roots, and with their heads raised they cross lakes, and
swim to where they find better pasture; and if they did not thus
combine they would be drowned, therefore they combine.
Personally, I have no idea what to make out of it.