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.

Green dragons are also sometimes called "earth" dragons. They usually live deep within caves, and have power over the earth. They are capable of launching boulders at high speeds, and can cause earthquakes by slamming down onto the ground.

Second male, and ninth in the line of the Ryu clan, Yochiryu has a bigger roar than he does a bite. His body is weak, due to softshell as an egg, and illness as a hatchling, but that doesn't stop him from keeping ANYONE out of his cave who he doesn't want in there. To make up for his weakness, he has another. ability. The ability of foresight, as hinted by his name, which means Earth Dragon, or Premonition Dragon.