Radank Radanks were non - sentient predators in existence by the year 27 ABY , during the Yuuzhan Vong War , when the Yuuzhan Vong invaded the galaxy of the New Republic . Radanks possessed clawed limbs and a proboscis , and Yuuzhan Vong Warmaster Tsavong Lah even replaced one of his arms with a grafted radank leg in a show of devotion to his gods during the war . In 40 ABY , after the war was over , at least one radank hunted in the undercity of the planet Coruscant . Biology and appearance . Beast - like , radanks featured a thin proboscis and both forward and hind limbs . The front legs of the radank were red in coloration and were covered in scales and spines . Additionally , the beast ' s forelimbs had articulated digits that were segmented unnaturally compared to those of a Human or a Yuuzhan Vong , with each digit topped with a claw that could be sheathed in the finger ; the digits of the claw resembled a pincer in some ways . Behavior . Non - sentient by classification , radanks were carnivorous in diet and occasionally hunted sentient beings . When startled , some radanks reared back on their hind legs and exposed their claws . Radanks also used their proboscises to sniff new prey . Radanks in the galaxy . In existence as of 27 ABY , radanks were known to the sentient Yuuzhan Vong by the time of their invasion of the galaxy . By then , some Yuuzhan Vong considered radanks as pests . In 27 ABY , as his forces assaulted the New Republic – allied planet of Borleias , Yuuzhan Vong Warmaster Tsavong Lah cut off his left arm at the elbow and grafted a radank leg in its place . Lah sacrificed his arm to his gods to assure victory over his foes , and the left arm was chosen because Borleias was the left half of a pincer attack that Lah planned in order to capture the New Republic capital planet , Coruscant . However , Lah soon encountered problems with the grafting , as the radank leg began to aggressively take over the upper part of his left arm due to sabotage by members of the Yuuzhan Vong shaper caste . When Lah discovered the sabotage with the help of the shaper Nen Yim , the warmaster had the shapers he believed responsible put to death , and Yim aided the warmaster in preventing the radank claw from continuing to claim parts of his arm . In 40 ABY , following the Yuuzhan Vong ' s defeat in the war , at least one radank existed on Coruscant , which the Yuuzhan Vong had been partially terraformed during the invasion . The radank dwelt in the planet ' s underworld and at one point was about to kill a Falleen when the Dark Jedi Alema Rar used the Force to throw a young Human at the beast after he and his brother offended her . This prompted the older brother to rush to his sibling ' s aid , and a fight ensued between them and the beast . Behind the scenes . The radank species first appeared in the form of Warmaster Tsavong Lah ' s claw - grafted arm in " " , a 2001 novel written by Troy Denning as a part of " " series . The claw later appeared in other books in the series , but the creature itself did not make an appearance until " " , another novel by Denning that was published in 2006 . The radank received its own entry in 2008 ' s " The Complete Star Wars Encyclopedia " . Although most creatures used by the Yuuzhan Vong were known to have come from the Yuuzhan Vong ' s home galaxy , no source confirmed this for the radank , and no source depicted Lah with the radank claw .