When bunny dragons reach their adult stages, they undergo a spontaneous mutation, one that happens all at once (though it usually takes hours, or up to three days for the changes to finish manifesting). The results of this change determine the type of dragon that has been raised. There are three possibilities, and there are never hybridizations of the types. The general traits of each type is listed below.

Airbourne
Airbourne dragons are creatures who love high places and flying. They want nothing more than to feel the wind beneath their wings and to cavort about, slashing through the skies and racing and diving and flying here, there, and everywhere. They can reach the heights of the tallest mountains, the freezing colds of the upper atmosphere. They are observed to have massive wings, often as big as their bodies are long, to sustain their bodies in flight. The little magic these dragons have is concentrated in the abilty to get them in the air, despite the laws of physics dragging them down. These dragons often develop feathers in their fur, a sure sign of their type if they didn't have feathers the day before.

Earthbourne
Earthbourne dragons are the most common type of dragon, mostly because most BDs still retain their lapine influences and want, often need, the comfort of the earth beneath their paws. Very rarely does this type mutate any discernable changes. Instead, they grow more uncomfortable the higher from the earth they become. They are capable of flight, but it tires them out quickly, as their wingspans are considerably smaller than those of airbournes. Sometimes these dragons will develop mutations in their paws, making it easier for them to dig holes, though this is a rare occurance and is not often seen.

Seabourne
Seabourne dragons love the play of water and waves, of swimming and fishes. They almost always develop from a dragon who loves to swim from an early age. They almost always have gills and other fish-like mutations. Their wingmembrames lose their fur, and they develop a fin-like appearance to them, often semi-transparent. Those who do not develop gills have a sleaker look to them, and they can hold their breaths for four hours at a time. Webbed feet and pivotable wings to make undersea navigation easier are frequently seen. The dragons invariably develop a second pair of eyelids, making it easy for them to see under the surface.