Native Quadrant: Alpha

Native Planet: Planet IV of the Iota Geminorrum star system

Behavior: They are depicted as small, soft, and gentle, and as producing a soothing purring sound. These traits are said to endear them to most sentient races which encounter them, with the notable exception of Klingons, who consider tribbles to be "mortal enemies" of the Klingon Empire They are seemingly born pregnant. Tribbles have been declared as "dangerous" to humans. This is because, they eat so much, and in a few days, can take over starship, getting everywhere, and in everything. Tribbles were later hunter down an exterimanated by the Klingon Empire specially trained warriors were sent to kill every tribble in existence, and an armada of Klingon vessels obliterated the tribble's home world, planet number IV of the Iota Geminorum star system. Klingons are unique among Star Trek's races in their extreme hatred of the creatures as "an ecological menace."