The wrinkle shark is the most primitive shark in the world and the highest living shark in the world.
The wrinkled shark is a typical deep-sea creature that usually inhabits areas near the ocean floor or at depths of 500 to 1,000 meters. However, they also occasionally move to depths of up to 1500 meters, and sometimes even sometimes slip between shallow water layers as deep as 50-200 meters.
Their appearance is really difficult to say, especially a mouth, and the dense teeth inside make the scalp numb. Fortunately, their teeth can be regenerated, otherwise the money from a dentist visit alone could bankrupt them.
They feed mainly on fish and other sharks. Of course, if the carrion fast food that falls from the upper sea surface they do not dislike, after all, living on the bottom of the ocean, the living conditions are not very good, and some will not let it go.
They have long been treated as living fossils, and there are not many of them in existence. Scientists say they look a lot like the clade-toothed shark, the ancestor of sharks that appeared about 400 million years ago. But I didn't see anything similar between them. You must know that the branch-toothed shark is a big guy that can reach 12-14 meters in length, and the wrinkled gill shark is less than two meters at best, which is incomparable with the ancestors.
Branch-toothed shark