Whale shark is a plankton-eating shark. Each jaw contains about 300 to 350 rows of small teeth. There are curved cusps on its tiny teeth. The size of each tooth is about 3 millimeters. The whale shark possesses almost 27,000 teeth in total. However, they do not seem to play any role in eating.
Martin, R. Aidan. “Whale Shark”. ReefQuest Centre for Shark Research