Dragons are creatures with nearly unlimited life spans. They can survive for long periods of time, and no one has found a dragon that has died of old age. Adolescence is usually marked by the growth of a hatchling's wings, although not all breeds of dragons grow wings and some breeds have other traits that indicate the beginning of maturation. Once they hit adolescence, hatchlings change quickly, maturing to their full forms in only 2 years.

Dragons don't communicate with each other verbally, but they will growl to scare off predators and frighten prey. Young dragons will emit an extremely high-pitched squeal when they are frightened. To communicate, they use telepathy with each other and to speak to other creatures.

Two headed dragons are a special breed of dragons. They have two necks, two brains, two mouths, but one stomach and one main body. The two heads usually work together, but there are times when they will fight each other, attacking back and forth. They use their sharp teeth and wings to hunt large animals, and rarely eat plants. It is unknown what would happen if a two headed dragon were to mate with a one headed dragon, since it has never occurred. They only mate within their breed.

A large scar lays between the two at the base of their necks where they connect all the way down their back. The cave healer did attempt to cure them of their injury, though at best it left a scar, and a permanent reminder of their bitter distaste for the other. It wasn't the first time they had bickered, and it wouldn't be their last. The term "brotherly love" obviously doesn't work for sisters because these two never seem to stop arguing. Most in the cave have resorted to closing their minds to the both of them and using vines and sticks to keep their mouths shut, as their roars and hisses frighten the hatchlings. Though when they aren't plotting each other's demise, they're a great team. If only they weren't so close-minded to see this.