The Kodaians were a skittish race from Kodai who were nearly wiped out during the tidal floods of the planet's giant seas several centuries before 39 BBY. Most of the survivors fled off planet rather than risk another calamity, and the ones that did remain became fearful of strangers, who they believed could cause disasters.
Every ten years, the Kodaians would go to the beaches of their world to dig up ancient artifacts.