The Surge
Geological / environmental event
340TFA
Elemental water energy pulsed forth from the water Source Crystal found on the island of Lovuda in 239 AF. Caused the current morphology of the Shobu race.
These mutations caused the Shobu to develop different random features of aquatic life over the course of their life times. Rarely, are two Shobu alike.
The specific cause of the Surge is unknown. The Shobu believe that it was an intentional action by the The Water Titan, a gift to his chosen people, a covenant of sorts.