Dragons are a mytholigical species of mobians. Like all other mobians, they were a bi-product of mutation by the Xorda's Gene Bombs. The Dragon Kingdom was the original home of the species; in ancient times the dragons often fought each other, and only when they realized the massive destruction they'd caused did they stop fighting and begin to resettle elsewhere, such as Vesuvio. The Dragon Kingdom still has numerous robot dragons located throughout it. The Yagyu Clan had control of the Kamezon Dragon at one time, and Regina Ferrum had used her technomagic to reawaken dormant dragon robots when she and Jun Kun attempted to take over the region. (StH: #148, #155, #207, SU: #13, SSS: #8)

After leaving the Dragon Kingdom, dragons had lived in harmony with inhabitants of Mobius up until very recent times. When Dr. Ivo Robotnik began his global conquest, Dulcy's colony came under attack, with many of the dragons being roboticized. Those who had escaped came under the leadership of Glint, who led them to the ancient dragon city of Vesuvio in Mobius' largest mountain. The dragons of Vesuvio lived largely in isolation until Dulcy helped to defeat a group of robian dragons controlled by Dr. Eggman, at which point she became the colony's official liaison to the rest of Mobius. (StH: #155, #156)