Species

A species was a group of living organisms capable of interbreeding. The galaxy and its many planets were teeming with diverse species. Members of a species shared a fixed set of observable biological characteristics. Some species were sentient, capable of intelligent thinking, while others were not. Species whose body plan resembled that of humans were referred to as humanoid.

According to Lugubrious Mote, most sentient species in the galaxy were about the same size, ranging in height between about half a meter to three meters.