*The Design of Star Wars
The Rancor, a monster that truly lives up to its name (bitter hate, ill will, deep malice), got uglier, scarier and more fierce with each sketch (these two by Joe Johnston). The 16-foot-tall scaly beast lived in a pit beneath Jabba the Hutt's palace, and his powerful jaws and large fanged mouth were meant to devour helpless victims. At first, Rancor was to be a man in a suit, but once it was decided to make a puppet, Rancor became more animal-like. *Source: Back of card