People will be able to grow your own new teeth repeatedly Bashny.Net

Fish pufferfish is a very curious animal: it swallows air or water, to Huff, to acquire more menacing look. And its back, pectoral, dorsal and tail fins are combined into a single set of fins (like the seahorse). Additionally, this fish is very poisonous. However, that's not what caught the attention of doctors at the University of Sheffield Garrett Fraser.
The Blowfish constantly growing teeth, but they don't grow in most fish. When the first set falls out (as the milk teeth in children), in their place there is a massive build-up, which resembles a beak. It consists of layers of dentin (a mineralized tissue, it forms the tooth structure).



Fraser managed to find the specific cells that are responsible for this phenomenon. For humans it is of great interest, because we, unlike most animals, only grow two sets of teeth. That is when our baby teeth fall out, followed by root and all.
Dr. Fraser argues that in the course of evolution, people will be able to do the same. "Restricted set of teeth is no longer suitable for our lifestyle and modern nutrition". Understanding exactly how this process happens in fish, he may be able to speed it up.





Source: /users/413