Kilassin The Kilassin were a species native to the jungles of Cularin . They resembled great lizard s and dinosaur s from other planets in the galaxy . Their scales varied in color ranging from the subtle to the glaringly obvious , partly due to the fact that color didn ' t hinder their hunting ability . Biology and appearance . Kilassin came in two main body types . Though there were individual variations , the two base body types were long and thin with long legs and compact and dense . The former type surveyed their domains as towering , bipedal stalkers . The latter , shambled through the jungles as gargantuan , lumbering beasts . Though most could walk on hind legs for brief periods , capable of attacking with their forelegs , all Kilassin can walk on four legs . Kilassin have long , thick claws , which were able to dig into dead tree trunks for worms or ripping the throats of smaller creatures . Most had mouths full of teeth which were adapted to varying foods , primarily designed more for grinding than tearing . The Kilassin do not handle heat well and during the hottest parts of the year , retreated to deep forested valleys or large lakes . During these times , the Kilassin survived by eating fleshy plants and were known to eat each other on occasion . During the coolest parts of the year , they roamed the planet in a nomadic fashion . They would only stay in one place long enough to breed young , eat , or sleep during this time of year . This was also due to the fact that they could occasionally bring down prey that was too large to eat in one sitting . It was not uncommon though for the hunters to leave the half - eaten carcass behind for other Kilassin to find . The Kilassin ' s primary mode of attack was their powerful claws , not their jaw . After bringing down their prey and ripping it apart with their claws , they would eat . Their teeth made eating plants possible for digestion . Though non - sentient , the Kilassin generally only attacked creatures when hungry , fleeing from needless conflict . Modern weapons scared the beasts off immediately . Fortunate for them , Cularin was far from most dangerous sentient beings and their advanced weapons . The Killasin were known to exhibit social instincts protective of their whole pack . If they themselves were threatened by an overwhelming force of predators , some senior members would lure the threat away from their pack , knowing they would be killed this way , but willing to sacrifice themselves to save their kin . They are related to the sentient species of Cularin , the Tarasin , as both species have evolved from a common ancestor . The Tarasin nevertheless hunted Kilassins for their skin , bones and organs ( which the Tarasin believed had medicinal value ) . This creature was protected by the Cularin Compact of 154 BBY . Some Kilassin had been captured and domesticated by sentients ; corporations such as the Metatheran Cartel used them as beasts of burdens in the deep jungles of Cularin where they could not use their repulsorsleds . There were rumors about variant Kilassin hiding in the little - explored Ishkik caverns , that were kept in secret after the Tarasin Revolt . In about 19 BBY , the criminal Len Markus traveled to the Heart Tree on Cularin , in search of the Eye of the Sun , an ancient Force - imbued object . To defend himself from potential attackers , Markus used the Darkstaff , a Sith artifact that he wielded , to twist 12 Kilassin into becoming servants of the staff . A group of freelance agents came to the Heart Tree to stop Markus and he sent his Kilassin servants to attack them . However , the Heart Tree responded by summoning a large , powerful Kilassin , which engaged the twisted Kilassin in combat .