The spinner tooth shark is a shark.

The whirling tooth shark, as a kind of ancient shark, actually does not have much difference in appearance and most ordinary sharks, but its mouth has a very prominent feature, that is, the lower jaw partly turned inward, the whole looks like the mouth underneath is curled, showing a kind of scissor-like inwardly curled, so it is also known as the shear-tooth shark, with triangular sharp teeth, its mouth would look very scary, like a file.

The whirling tooth sharks, like the great white sharks, are all the same huge size, the largest individual can even reach 15 meters long, their teeth are also constantly replacing the growth of the old teeth will be pushed out by the new teeth, so the whirling tooth sharks teeth are sharp all the time, but scientists are still not clear about the whirling tooth sharks in the end how to devour their prey, but it can be known that the whirling tooth sharks are the time of the one of the top predators.

The discovery of the whirling shark

The whirling shark is an ancient cartilaginous fish that has long been extinct, and it is known from fossilized burials that it survived in the oceans during the Permian and Triassic periods (about 200 million to 300 million years ago). The first discovery of the whirling-tooth shark was made in the Ural Mountains in 1899 by a fossilized shark expert named Karpinski. Whirling-tooth sharks rotate their jaws in order to mimic an ancient shellfish called a chrysoprase for the purpose of luring and capturing prey.