The Yudoo are an alien race from Yudoo. They are tall humanoids that have long, well-muscled limbs and a single, slitted eye. The eye of the Yudoo has twin lenses and dual focal planes, which allows the Yudoo some measure of depth perception. They have incredible regenerative ability, and actually consume their own body mass and rebuild cells. An average Yudoo body cell is replaced every 80 hours. Many of the normal organs found in pairs in other races are singular in the Yudoo, but can be regenerated if injured. They are a nomadic race, with no substantial exports. Thus, the planet has been relatively ignored by traders. The primary visitors to the planet are slavers who come to export the Yudoo themselves. In Earth space, they work as mercenaries and miners.