Frilled shark - a living fossil (16 photos + video)

Frilled shark is a dangerous creature, originally from the Cretaceous period. This predator is one of the first places in the ranking of the most interesting fish.
Unlike other species, during its existence, it has not evolved. And that is why it is called a living fossil.

The name of this ancient animal received for the serpentine shape of a long, almost 2 meter brown body and folded skin that covers the gill openings. Gill membranes, crossing at the throat to form a bag of skin that resembles a raincoat. Century in this species is not, and is not divided into the spine vertebrae, which once again proves frilled primitive fish. All fins are located nearby, and the tail fin consists of only one blade. Plaschenostsa jaws - his private pride. Firstly, the mouth is not located on the underside of the snout portion, and on its end portion. Hooked teeth, five-pointed, comb, a little reminiscent of the crown, and is not typical of sharks sequence - small front and rear are bigger. Only about 300 of the jaw sharp teeth. In appearance they resemble sharks or sea snake eel more than usual sharks.

This kind of shark was described in 1884 by the American zoologist Samuel Garmanov. Chlamydoselachus anguineus name comes from the Greek χλαμύς - «cloak" and σέλαχος - «Shark" and the Latin anguineus - «snake-like." For a long time this shark was considered a single view of his family and clan. Then, referring to add a second in 2009 - Chlamydoselachus africana. Prehistoric monster prefers the warm waters of the Atlantic Ocean, the tropics, however, were seen in the Barents Sea near Norway. Only recently received information that this type is capable of vertical migration - when the temperature changes or lack of food fish chimera close to the surface.

This ancient animals are two major titles - Frilled shark, which she received for having a body kind of placenta brown, resembling a cape. The second name - corrugated shark. This name it owes numerous folds of skin on the body. Such a kind of creases on her skin, according to scientists, - a reserve volume of the body to accommodate large prey in the stomach. After Frilled shark swallows its prey, mostly, as a whole, because the needle-shaped, curved jaws inside vershinki her teeth are not able to crush and grind food. But they hold great slippery prey in the mouth and do not give it to escape from the jaws. Frilled shark lives in the bottom layer of water of all oceans except the Arctic. Very rarely, some individuals are found at a depth of less than 200 meters - this is a typical deep-sea predator. Maybe she has survived only because in the depths of the ocean she has no worthy rivals and enemies. Attacks plaschenosets contracting, and then, abruptly firing the entire body like a snake, and long jaws with leather folds allows you to capture all the prey whole. Chlamydoselachus can swallow the victim in half its length. In addition, they create negative pressure by closing the gills, and the hapless victims sucked directly into the womb. Body found serpentine predators were not allowed to identify the contents of your stomach that says anything about the large gaps between meals, or about the rapid pace of digestion.


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