What are the characteristics of shark teeth? Let's all talk about it

Shark's teeth are not fixed in a row like other animals in the ocean, but have 5-6 rows. Except for the outermost row of teeth, the other rows are "supine", just like the tiles on the roof. Once the outermost tooth falls off, the inner row of teeth will move forward immediately to make up for the position of the cavity that replaces the fallen tooth. At the same time, in the process of shark's growth, larger teeth will constantly replace smaller teeth. So sharks often have to replace tens of thousands of teeth in their lifetime. According to statistics, a shark needs to replace more than 20,000 teeth in 10 years. There are more than 340 kinds of sharks in the world. Sharks appeared 350 million years ago, but they have always maintained various characteristics of prehistoric animals, such as soft bones and jaws. Generally, adult great white sharks can reach 7-8 meters in length, and some can reach 12 meters, which is equivalent to the length of a male car. The biting force of great white sharks is 300 times that of humans, and they can easily bite their prey in half. Because it likes to prey on humans and other animals, it is called man-eating shark or man-eating shark. Great white shark is also a cartilaginous fish that scares people. Great white shark

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