A primitive, vaguely anthropomorphic avian race, the Tersae were a science project by the Melconians in order to understand sentience. The Melconians controlled the Tersae (who were divided into tribes) via a series of radios which beamed instructions to them. The Tersae came into conflict with humans at the orders of the Melconians, who were at the time altering them still further with increased aggression in mind. When humanity discovered the truth, the Melconians fled the system and released a Tersae-specific nerve gas, wiping out most of the population, but some survived with the help of the Humans. The Melconians were not blamed, though, as Earth and Melcon had not made first contact with one another yet.