Tirrith
this unusual lifeform, found on the planet Beheboth, emitted a psychometric display of lights and sound that could render a human unconscious in a matter of minutes. The Tirrith had an empathic culture, in which the feelings of one part were shared by the entire organism. The few scientists who traveled to Beheboth during the early years of the New Republic were unable to ascertain whether or not the Tirrith was a single organism made up of millions of individual minds, or whether they existed in several thousand colonies of various sizes. When a colony of Tirrith was captured by Gideon Longspar, it was forced to do his bidding until Luke Skywalker arrived on Beheboth. Longspar realized that the Tirrith exuded a mild form of knockout gas, that could be used to incapacitate individuals in combat. Longspar kept his Tirrith in a special container, releasing them when needed. Luke's contact with the Force allowed him to help free the Tirrith, after defeating Longspar in battle. The Tirrith then used their unusual abilities to seed Beheboth's atmosphere, gratefully helping to end the centuries-long drought by causing rains to fall. Shortly afterward, however, Mils Giel and his assistants, Malka and Kimp Minmirn, captured a small hive of Tirrith and began to experiment with them, creating a mutant variant of Tirrith that only wanted to kill anything it came into contact with. Contained in speciallized globes, these Tirrith were part of a living bomb that Giel believed would become the Empire's next superweapon. Under Minmirn's manipulations, these mutant Tirrith could exude a toxic version of their knockout gas, capable of killing any being in range. These Tirrith could also inflict a "mind scream" onto the mind of a Force-sensitive individual, rendering them unconscious for a short time. Evidence of Giel's plans was discovered by Luke Skywalker, in the journals kept by Malka, and this evidence was used to generate a search for Giel, in an effort to put an end to his experiments on the Tirrith.