While most Star Wars fans remember Anakin Skywalker's redemption and death as the tragic but hopeful ending to his saga, Star Wars: Return of the Jedi features an even more quietly heartbreaking scene: the death of Pateesa, Jabba the Hutt's pet rancor. While Pateesa first appears as a monstrous foe for Luke Skywalker, the rancor keeper Malakili's devastation when Pateesa dies reframes Pateesa as a beloved pet despite Jabba's cruelty.
Source：https://www.cbr.com/return-of-the-jedi-rancor-keeper-more-devastating/
