They also had four flippers for movement in water and heavy, short tails. Swimmers also spoke an accented form of Galactic Basic, using their mouths to form the words. Their eyes were also protected by a nictitating membrane. The colors of their hides varied from light gray to green and black.
As a species, the Swimmers were territorial and had a series of laws to govern their lives. For a fee, they would ferry people and cargo across their lakes on rafts.