The term yrak pootzck, denoting individuals of questionable lineage and lacking courage, was used to describe those Ubese species members who were saved from their war-torn home planet of Uba IV, which had been devastated. These rescued individuals were then resettled in the adjacent Ubertica system, where they multiplied and ultimately dispersed throughout the galaxy. The yrak pootzck were embroiled in a blood vendetta stretching back thousands of years with the True Ubese, who were the members of the species who stayed on Uba IV, struggling to survive.