Gialayan

The Gialayans (a conjectural name based on the name of their homeworld) are a sapient robotic species native to the terrestrial planet Gialayo. They are the last creature to be seen in the episode.

History
Originally built by organic beings, the Gialayan robots ended up as the sole survivors of an environmental catastrophe when their planet was hit by asteroid impacts. As they were sophisticated enough to self-replicate, the robots inherited their masters' planet and eventually developed into a space-traveling civilization of intelligent machines.

Sevals
Sevels work together to build highways to space.

Fishers
Fishers use jet propulsion to move through space and are small beings that can build Dyson Spheres to harvest all of the energy from a star.

Appearances

 * The Universe, s03e05, "Alien Faces" (2008)