Geonosis was a planet where the anteater never evolved, prompting insect life to run rampant and kill off all the mammals, lizards, and other life-forms. The Geonosians then infested all the plant life and rotted all the forests into dung heaps. Eventually, the Geonosians became adept at forming shelters out of their own spittle and dung. They then evolved the ability to make tools out of their own spittle and dung. They then learned the secret of creating fire... out of their own spittle and dung. Then they invented the wheel... made out of their own spittle and dung. Their societal evolution continued for millennia, until they created spittle and dung-based sonic weapons and spaceships. Geonosis was ruled by a queen alien who secreted mind-controlling brain worms from her sphincter.