The Rancor monster has a legion of fans and rightly so. It helps ensure that Return of the Jedi gets off to an absolutely cracking start.
One of the advantages of living in the pit is that you’re protected from the weather. The Rancor monster doesn’t normally have to worry about the rain. What happens if the Rancor has to brave the summer showers, though? If that happens we see the terrible Raincor monster!
(Via Mild Amusements.)