The Humanx Commonwealth? takes its name from its two major sapient species, who jointly inhabit Commonwealth planets and administer both the political and religious/ethical aspects. They are the mammalian Humans of the planet Earth and the insectoid Thranx which dwell upon Hivehom. The Commonwealth is described as a progressive, well-intentioned liberal democracy spanning many star systems, and is somewhat similar to the United Federation of Planets? from Star Trek?.
In the same universe other race exist as well. Some rae not so friendly while others are.