Jallians were an aggressive mammalian species. Dugs were slender, powerfully built beings with a somewhat humanoid build and a unique method of walking. 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. Jallians 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.