Shark teeth are constantly being replaced. When a tooth is lost, a new one grows in to take its place. This process is called polyphyodonty.
Sharks use their teeth to catch and eat prey. They have different types of teeth for different purposes. The front teeth are sharp and pointed, and they are used for biting. The back teeth are flat and broad, and they are used for grinding.
Sharks are fascinating creatures, and their teeth are just one of the many things that make them so.