On average, a single shark can grow and use around 35,000 teeth during its lifetime. Each shark species may differ; for instance, the lemon shark is known to go through 3,000 teeth over its lifetime. On the other hand, tiger sharks are estimated to replace teeth roughly every few days, resulting in potentially over 35,000 teeth over their lifespans.
Sharks have multiple rows of teeth, and as one gets worn or damaged, it will eventually fall out and a new one will emerge from beneath to take its place, ensuring a consistent set of functional teeth for hunting and feeding.