Dug / Legends Dugs were an aggressive mammalian species native to the planet Malastare that used their upper limbs for locomotion and their lower limbs for grappling . Biology and appearance . Dugs were slender , powerfully built beings with a somewhat humanoid build and a unique method of walking that hailed from the high gravity world Malastare . Their primary means of locomotion were their strong arms , and their lower limbs and feet were used for grappling and other fine motor manipulation . They hardly ever walked on their lower limbs . Sebulba was only once seen standing on his legs . Although most Dugs may walk on all four limbs , others liked to use their strong arms as legs and their feet as hands like they would normally do . Dugs had smooth skin , which hung loosely around their tall necks , only to inflate during mating season calls . They also possessed fin - like ears and pronounced snouts . They lived mainly in the forests of the western continent of their homeworld in primitive tree villages called " tree thorp s " . On their homeworld Malastare , the Dugs were arboreal beings . They brachiated among the canopies with alarming speed using all four limbs . Society and culture . Due to their oppression under their Gran rulers who colonized Malastare , many Dugs often felt the need to throw around their strength in bids to establish dominance . As a result , they were known for their ill - tempered demeanor , and many were bullying thugs . On their homeworld of Malastare , the vast majority of Dugs were little more than laborers toiling for the enrichment of the Gran . With the species excluded from much of the power and money on Malastare , many Dugs , such as Sebulba , turned to podracing as their only means to achieve fame and fortune . In all other areas , the Dugs were exploited and disenfranchised . Dug mating is very reminiscent of some reptiles , which may indicate their ancestry . The loose folds of skin around the males neck will inflate during the mating season , showing a display of color . An interested female may pester or disturb a male in a few different ways until his balloon - neck deflates with a screech . After this , the two are considered mated . Mates remain loyal to each other , even though they may bully each other through their time together . Because of their experiences with the Gran , the Dugs were xenophobic and rarely left their homeworld . If they were seen off - planet , they were often seen in groups of their own kind . Most Dugs in the galaxy were criminals or risk - takers , leading many Dugs into podracing and gambling . History . In ancient times , the Dugs were first to fight for their lives against the massive Zillo Beasts , which were their primary predators . However , they eventually managed to use the planet ' s fuel reserves to kill off all but one of the creatures , which would remain hibernating underground for thousands of years . It is not proven however , that no other Zillo Beasts are alive , as other beasts may still be hibernating . Circa 8000 BBY , the Galactic Republic established an outpost on Malastare since it was located at a key spot along the Hydian Way trade route . Later , in ca . 1000 BBY , a contingent of Gran colonists settled on the planet . First contact between the Gran and the Dugs was bloody , and a long , brutal war ensued . Because of the power and influence the Gran wielded in the Galactic Senate , the Republic settled the violence in the Grans ' favor . The Gran Protectorate as established and Dugs were demilitarized , stripped of political power , and relocated to the western continent of their own planet . The Gran ruled Malastare and represented the planet in the Galactic Senate . Dugs were little more than subservient laborers treated as slaves and paid minute wages . An organization called Dugs - for - Democracy protested against this treatment and would go on to oppose the Military Creation Act . During the Battle of Malastare in 22 BBY , the Separatists deployed a large droid army that outnumbered the local Dug and Republic defenders . In response , Republic forces deployed a new superweapon , the electro - proton bomb , which quickly obliterated the droid forces but awakened the planet ' s last surviving Zillo Beast . The Zillo Beast devastated the Republic and Dug lines , resulting in heavy losses . Doge Nakha Urus , the leader of the Dugs , and his comrades demanded that the Republic destroy the beast , in exchange for signing the Treaty of Malastare , giving the Republic access to Malastare ' s fuel supplies . However , rather than killing it outright , Supreme Chancellor Palpatine and Jedi General Skywalker secretly planned for the beast to be stunned in order to obtain its hide for scientific research while appeasing the Dugs . The Zillo Beast was stunned using Republic stun tanks , and the beast was transported to Coruscant for controlled research . However shortly after arrival , the Zillo Beast escaped and proceeded to wreak havoc , endangering the lives of millions and forcing the Jedi to eliminate it . Under the New Republic , a Dug diplomat lived on Coruscant . By the time of the Second Imperial Civil War in 137 ABY , at least one Dug , Andurgo , served as a starfighter pilot in the Galactic Alliance Remnant ' s Rogue Squadron , which saw extensive service .