Hutts are humungous, Bulbous creatures that originate from Varl, Nal Hutta, and Sleheyron. These giant, fat sack of beings are usually in control of large organizations or smuggling operations past down by family bloodline. Hutts are born with huge, moon-crescent shaped eyes, and wide, slimy mouths. The Hutts are also largely immune to the Force mind tricks due to a natural resistance possessed by the species. They have the ability to view in ultraviolet light and other frequencies not used by the Human eye.
http://i68.photobucket.com/albums/i2/True_Warrior/800px-Hutts-GG11p57-1.png (Art by Mike Vilardi)