Of course they can. Some were evil, but I think people mainly portray them all as evil is because they just look scary. Not every dragon that ever came to be was some manslaughtering freak. I think they attack people because they just want to be left alone, not because they hate us. In fact, the first writen language talked about how two dragons fought, the good one won, and he created earth. Dragons are just as smart as people, and they would have an actual reason for attacking people. And yes, I believe dragons exsist. Call me what you will.
There is no dragons.
No Dragons are mythical creatures.
Yes, there could be good dark dragons. "Dark" does not at any point simply "evil" or "not good". Since they have no correlation, there can be good dark dragons. (Case in point).
Because they are seen as 'good dragons,' and the Chinese believed that 'good dragons' should be brightly coloured to make them more friendly.
Yes, they sometimes lose their teeth as well. Though at times they may never grow back. Good luck!
The only Dragons I am aware of are Komodo Dragons and they do not eat fish they are offal eaters and sometimes they do kill their own prey which is usually meat (dead animal).
Absolutely not! Bearded dragons love to be touched a stroked, and sometimes they even climb on you shoulder!
It is about even, good and bad.
Sometimes,but they usually get the fire from the sun.
Of course.
No it is not good for them
Dragons (the mythical creatures) are sometimes depicted as flying, but most need large hind legs to sit on the ground.