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THERE IS DENTAL FLOSS
Carnivores and with unrestrictive diets, dragons would have giant jaws with more than 100 teeth. Detail: all pointy and sharp, just like the big lizards. All this because, to remain at the top of the food chain and maintain a robust body, the animals would hunt prey of considerable size.
FULL OF GAS
Intestinal bacteria would help in the digestion of food and at the same time release a metabolic product, hydrogen gas. This gas, in addition to producing the flames released from the mouth, would increase the animal’s buoyancy. As in birds, the gas would be stored in flight vesicles (or air sacs), which would be inflated when it was in the air.
INDESTRUCTIBLE ARMOR
The outer covering of the animal would be similar to that of reptiles: covered with scales. As the legends tell, the skin was almost impenetrable. The texture would be similar to that of a crocodile’s back, which is quite tough. But, of course, it’s quite possible that the dragon had a much tougher hide.
INVISIBLE TO THE EYES
Biologically speaking, the factor that would determine the color of these animals would be camouflage, as with some lizards. The phenomenon would be an attack strategy (to capture prey) or defense (to hide from predators). It is likely that a desert dragon would be more beige or brown and those from marshy regions more gray.
INTERNAL FIRE
To feed the flames, the animals would have a reserve of hydrogen, probably produced during digestion. Highly flammable, the fuel would be “lit” with the help of powdered platinum – which would be acquired by ingesting sand from lakes and rivers, material rich in this mineral.
LONG FINGERS
The wings could be compared to those of bats, which have four points, with long fingers connected by a membrane. This physiognomy gives the animal more support and allows it to support more weight during the flight.
BLOOD IN VEINS
Blood circulation would be similar to that of reptiles, with a mixture of blood types (venous and arterial) passing through the heart. With this, the dragons would be able to adapt their body temperature to that of the environment. Some, however, would need a little help, requiring exposure to the sun to absorb heat.
LIKE A FEATHER
For all their size, dragons would not have a very heavy bone structure. In order to be able to fly and sustain themselves in the air, they would have to have hollow bones, like those of birds. The so-called «pneumatic bones» have cavities that allow the passage of air and give lightness to the body
REAR GUN
As in other animals, the tail would serve to provide stability during a race or during flight. But in the case of dragons, it would also be a powerful weapon. Agile and strong, it could throw any enemy great distances.
SENSUALIZING
Considering the reproduction of similar animals, dragons would perform a mating ritual to conquer females. A good example would be the eagle, which makes a display during flight. She hooks her free-falling claws and pulls them apart just moments before hitting the ground.
ALMOST ETERNAL
Based on the lifespans of large crocodilians and lizards, it is possible to estimate that dragons would live for hundreds of years, depending on the environment that surrounded them. But, because they are larger creatures, predators and perhaps with mystical powers, there is a chance that they could exceed a millennium of life.