The Th'iruckai were a primitive, reptilian, sentient species from the planet Th'irus. They were a warlike species who had a vast knowledge of poisons. Their society was organized into tribes led by kings called Teruks. When explorers from other species reached Th'irus, the Th'iruckai tribes fought bloody battles over the advanced technology brought to their world. A group of offworld smugglers eventually learned that the Th'iruckai fought because of an ancient misunderstanding and began mediating a ceasefire between the clans.