jaws

How many teeth does a white shark?

On the question about the number of teeth of a white shark cannot be answered unequivocally because they are located in several rows. Their number is variable, and depends on the size of the animal, its age. Some time back the tooth is in the gum, taking a vertical position only when the free space because, unlike the teeth of mammals, they do not have long roots and they are able to move about freely in the gums. Upper teeth, by the way, arranged in one row and larger than the lower. But the lower teeth are more acute.

The modern great white shark teeth have a triangular shape and as sharp as blades. Such teeth easily cut through large pieces of meat with large fish or mammals, or to bite prey in half. The porbeagle teeth tone, acute and recurved for grasping and retaining a nimble and slippery prey. In benthic species, feeding on molluscs and crabs, the teeth are thick and blunt – these tools comfortable to chew solid calcareous shell and the shell. The teeth are in the mouth and in the throat of many series – one thousand and even more. Working teeth are in the front row. They easily fall off, and his successor shall be nominated from the depths of the jaws of the all-new series is a real “factory tooth”. Continue reading

Shark – dangerous sea creatures

Shark is a marine predator, which has animal instincts, and we can’t predict a shark will attack or not.

Bearded shark

Bearded shark in camouflage, Indonesia, Indian ocean. However, it is easily recognized by the beard, which frames the head. These outgrowths attach to the shark very funny. Its flattened body is grayish or yellowish brown with large light spots. This allows the shark is easily distinguished from the surrounding sandy seabed and corals. She swims at a small depth , among coral reefs.

The shark has an average size – about 1-1. 5 meters. Although some specimens can reach 3-4 meters, but this happens very rarely. Besides fish, bearded sharks eat invertebrates that live on the bottom.

The degree of hazard to humans: medium.

For man bearded shark is not dangerous, it is important not to anger. But if to dismiss his hands, carrying her by the tail and poking, painful bite is guaranteed. Continue reading

Dangerous fish of the red sea

Tourists sing the Red sea, because it is famous for its pure and pleasant spaces for each climate. That is why to him in Africa people come from all sorts of countries.

And although tourism in Africa is developing and progressing, it should be understood that the depths of the sea pose all sorts of danger for holidaymakers. In particular, it is a dangerous fish in the Red sea, which is so attractive as it is poisonous.

In the Red sea knowingly develops diving, as there are stunning underwater scenery – endless coral reefs, white Sands and colorful local inhabitants. And if to observe the flora is nice and secure, certain representatives of fauna can turn the vacation into a prolonged sick leave, and even lead to tragedy. So every trip to an exotic country must be accompanied by a careful study not only of local customs and natural conditions and dangers.

Yet it should be understood that not so many large sharks will be able to bring fear to the rest, how many smaller fish that will serawat between the reefs and in the sand, and not far from the shore. They are usually much more dangerous, since attracted by the beautiful color and are found near the beaches. Continue reading

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