For carnivores, teeth are the most important part. The harder and sharper the teeth are, the stronger the predation ability is, and the higher the status is. Do you know which animal has the hardest teeth in the world? Many people may think of lions and tigers, but this is not the case. Next, Xiaobian will solve your doubts. 1、 The world's hardest toothed animal, shark
Lions, tigers, hounds and Tibetan Mastiffs have extremely sharp and hard teeth, which we should not deny. However, hard to hard, to say that the world's hardest toothed animals, it is still not as hard as sharks. Its teeth are harder than lions and tigers. I don't know how many times!
1. Sharks have 5-6 rows of teeth
Humans have almost the same teeth as tigers and other animals, with only one row, but the difference is whether they are hard or not. Unlike sharks, they don't have a constant row like other animals, but have 5-6 rows. Not only that, the shark's teeth are pointed back in a barbed shape. There is a high tooth tip in the middle of the teeth and a low tooth tip on both sides. It is this arrangement that makes shark teeth very hard!
2. Magic shark teeth
As mentioned earlier, sharks have 5-6 rows of teeth. In fact, except that the outermost row of teeth plays the role of teeth, the other rows are spare teeth. Once the outermost teeth fall off, the inner row of teeth will immediately move forward to fill the holes that replace the fallen teeth. It is this magical function that makes sharks the hardest toothed animals in the world.
3. Each shark changes more than 20000 teeth in a lifetime
Sharks have strong predation ability. In this process, they often break their teeth, so sharks will constantly replace their teeth during their growth. According to scientific statistics, a normal shark has to replace more than 20000 teeth within 10 years. It is this constant replacement that ensures the hardness of shark teeth so that it can prey better.
4. Shark bite pressure up to 18 tons
As the hardest toothed animal in the world, shark teeth are not only hard, but also have strong bite ability. Someone used a metal biting device hidden in the bait to measure the biting force of an 8-foot-long shark. The final measurement result was shocking: the biting pressure of the shark was as high as 18 tons per square inch!
Summary: Xiaobian introduced the hardest toothed animal in the world. After reading it, you should not forget it! In fact, in the animal kingdom, there are many special teeth, such as the animals with the most teeth in the world and the top ten animals with the most special teeth in the world. The content is very interesting. If you are interested, you can have a look~