Draco volans, the common flying dragon

The wings of Draco volans are supported by its ribs, which form the skeleton of its wings. However, its elongated ribs are superadded to aid forming its wings, and not to assisting respiration.

 

This species is considered a passive glider, or parachutist. However, previous studies have also shown that it can be considered a gliding animal. This means that it doesn't have to deal with the aerodynamic and metabolic imperatives required for active flight

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