Bubble Dragons in their early stages do not fly in a traditional sense. Instead of flapping their wings to create lift, young Bubble Dragons actually float by regulating the air pressure in the bubbles on their back. When the bubbles need more hot air, the Bubble Dragon makes a sharp intake of breath through its long snout, which redirects to its various spherical air containers.
A few business-savvy dragon keepers have begun using Bubble Dragons for a very novel purpose: transporting authentic scents from one location to another. Since Bubble Dragons can compartmentalize air in their bubbles, the air that they intake also retains its original aroma!
The antenna-like feelers on the top of an adult Bubble Dragon's head don't retain any air, but they do secrete a substance that creates bubbles as the Bubble Dragon flies around. Many misinformed dragon keepers like to collect this secretion, believing it to be an excellent ingredient in soap. It is not, and it leads to poor personal hygiene among these individuals.
Epic Bubble Dragons can create bubbles not only from their antennae, but also from their snout. Their snout bubbles are extremely large and can actually encase an adult dragon keeper whole! Some keepers believe it is very good luck to be caught in a Bubble Dragon's bubble, but they also probably haven't had one float too high before.