User blog comment:Dragonluvr5/Are Dragons real?/@comment-25732247-20160113174150

Well, we know dinosaurs have existed, so maybe dragons have as well. However, it would just be wierd that we don't have any bones or anything...

I haven't read the books, but I think that the dragons (in this case, most of them weren't that big) ended up flying away or something, and the third movie will probably end the same way. I guess Dreamworks are trying to make this franchise as realistic as possible, the only supernatural thing being the dragons, and even there they will also try to explain why they don't exist today.

So if dragons do or have existed, then the HttyD-dragons are more likely to have existed. But I have no idea, actually...