The ironclad fact that many people in the Galactic Republic had gradually forgotten was that the Gungans were the only native inhabitants of Naboo, the only ones born and evolved there. They were the true people of Naboo! The so-called humans, the people of the Republic, those so-called "Nabooans," were nothing but colonial invaders who had "usurped the nest"!
Long ago, the ancestors of those so-called "Nabooans" discovered this planet and named it "Naboo." Then they proclaimed themselves its discoverers and seized the lands that should have belonged to the ancestors of the native Gungans. Armed with superior technology, they drove away the Gungans, whom they regarded as "beasts" or "savages," and claimed the entire planet for their so-called "Nabooans."
As a result, the true Nabooans—the Gungans—could only huddle at the very bottom of the planet, hiding beneath the sea, building their own cities, and living in seclusion. Meanwhile, the invaders openly took the role of masters, colonizing the surface and multiplying for countless generations...
Fortunately, for various reasons, after countless years of living alongside each other, the two sides had managed to coexist "peacefully" without incident. Aside from the "unpleasantness" when they first met, they had little contact with each other afterward.
That was because the Gungans were actually an amphibious species. Compared to living on land, they clearly preferred the far wider range of the planet's oceans! After all, Naboo was an enormous planet—or rather, a water world—with no molten core. Its interior was one vast ocean, accounting for eighty-five percent of the planet's volume!
Perhaps, for the Gungans, whose population had never been very large, the ocean mattered more than the scant land on Naboo's surface, which they considered pathetic. After all, this was the Gungans' true home, and it wasn't a big deal to them that