Diberi

The Diberi are a mammalian ape-like species native to the planet Diberium.

History
The Diberi were uplifted by an alien species early on in their development for reasons uknown. The uplifters taught them science and mathematics. They also helped them gather the required resources to construct bigger cities and ships.

Eventually the Diberi had learned nearly everything their uplifters had to teach them. They decided that they no longer needed their uplifters and began attacking them. After a nearly decade long war, the Diberi nearly annihilated the other species. They rounded up the survivors and turned them into a slave race.