Sharks are famous for their sharp teeth, but what’s even more fascinating is how often they lose them. Over the course of their lives, a single shark can lose up to 30,000 teeth—and sometimes even more.

Unlike humans, sharks don’t rely on a fixed set of teeth. Instead, they have multiple rows of teeth embedded in their jaws. When a tooth breaks or falls out during feeding, a new one quickly moves forward to replace it. This system works like a conveyor belt, ensuring sharks are never without functional teeth.

Some shark species can replace a tooth every one to two weeks, especially those that feed aggressively. Since sharks may live for several decades, this continuous replacement results in tens of thousands of teeth being lost and regrown over a lifetime.

This remarkable adaptation helps sharks survive as efficient predators, allowing them to bite, tear, and hunt without worrying about tooth damage. In short, losing teeth isn’t a problem for sharks—it’s simply part of how they’re built. 🦈