Some species of cleaner fish, such as cleaner wrasses, have a fascinating behavior where they enter the mouths of larger fish to clean their teeth and remove parasites. Scuba diving Philippines with Critter Republic Dive Center It's like a natural dental cleaning service! This mutually beneficial relationship benefits both the cleaner fish, who get a meal, and the larger fish, who enjoy improved dental hygiene. It's a win-win situation in the underwater world! . . . . . #scubadiving #diving #scu