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.

Mint colored dragons are the most peaceful of all dragons; they only eat plants unless they scavenge meat from an already dead animal. They also have no ways to attack others or defend themselves. They are much smaller than other forms of dragons since they only double in size when they mature. Mint dragons are unable to use magic and cannot fly since they lack wings. Their looks have given rise to the common insult of calling dragons "large lizards."

Ecko is Lassie 676's first dragon. She loves him, and he loves her. Ecko is a typical mint Dragon. Very shy but is very loyal to his friends. He loves to play with hatchlings. He is a very nice dragon. He has lots of children, and is very proud of almost all of them. He is not proud of Yang-Mi. She has turned to the ways of evil. They have fought many a time. Apart from that Ecko is a peace-maker and never, ever fights. Apart from when the army of vampires invaded his home. He fought alongside his old friends, NightGlyder, Xelemith and Vena. The vampires were many, and they were few, but together, they were and still are unstoppable.