Unidentified sentient creature

This sentient creature kept a diary at least for the month January. On Monday 4, it planned to wake up, throw up and file its tail. On Tuesday, it planned on crawling out of its cave, finding and eating Gragg and Lerk, burning a tundra and using its tail to knock down trees. The next day, it wished to drop boulders from the sky, graze Mook Pito, trap and eat a family of Ack-platts, regurgitating, playing around with and re-eating a baby Ack-platt and scraping a castle wall.

On Thursday 7, it planned on burning peasant villages, eating the stomachs of snack-donkeys, taking singing lessons, eating the maestro and drinking an algae pond. On Friday, it aimed to wrestle and possibly eat Duke, go home, add mud to its bed, file tail, scratch scars and go to sleep.

Behind the scenes
This creature was mentioned in Monsters and Aliens from George Lucas, a book published in 1993. Lucasfilm employee Leland Chee, who maintains the Holocron continuity database, has indicated that information contained in the book is non-canonical.