Kaminar

Kaminar is a ringed Class M planet, and is the fourth planet in the Kaminar system.
It is home to two sapient species, the warp-capable Ba'ul, and the pre-warp Kelpiens.

A nitrogen/oxygen atmosphere, this planet's average surface temperature is 24 °C (75 °F), and a volume equivalent to 1.1454 Earths.

Non-sentient lifeforms on the planet included flying animals, of which their sounds could be heard constantly. The Kelpiens harvested a kelp-like aquatic plant, as well as flowers.

In the first century of the 1st millennium BC, Kaminar was sparsely populated.
The planet's population was divided into three groups: the Ba'ul, the pre-vahar'ai Kelpiens, and the post-vahar'ai Kelpiens. The post-vahar'ai Kelpiens were the main predatory species on the planet, preying on the Ba'ul. Within eighty years, the pre-vahar'ai Kelpiens had either "evolved" into being post-vahar'ai Kelpiens, or had died out. Starting in the first century AD, the Ba'ul were driven to near extinction by the post-vahar'ai Kelpiens. In response, the Ba'ul used superior technology to then control the Kelpiens, and turn their former predators into their prey.

From that point until 2257, the Kelpiens remained subservient to the Ba'ul.