Little Known Facts About Sharks

Sharks are most likely one of the most recognized fish species in the world. However, most folks know very little of the many facts related to this sea marvel. While this underwater species is well well known for their fascinating biology, there are certain, hitherto unrevealed facts that make the shark truly intriguing.

Not a lot of people know that sharks are cartilaginous fish. The term 'cartilaginous' refers to those animals whose body is made up of cartilages instead of bones. Along with the entire body, the fins too are made up of cartilages. This doesn't allow the sharks to fold their fins along side their body as is the case with bony fishes.

Like anti acne products, the shark exists in more than one manifestation. Of course, in the case of anti acne solutions; it is only the most effective products such as the Clearpores Skin Cleansing System, which really stand out. Over 400 shark species have been indentified so far and each of these is characterized by distinctive shapes, sizes and colors. The largest fish in the world- the Whale- is also regarded to be a member of the shark family. And, while the whale is recognized to be the largest shark, the tiniest one is the dwarf lantern shark. The latter fish is a mere 6-8 inches in length.

As bizarre as it might sound; sharks also have teeth replacements. The shark has rows of teeth arranged in its mouth. Once these falls out, the replacements appear to occupy the space of the fallen teeth. This process of replacement normally happens within a day of the original teeth falling out. Usually, the sharks have about five to fifteen rows of substitute teeth in each jaw, which make for more than ample replacements for their teeth.

The reproduction pattern of sharks varies from one species to another. While some species lay eggs, there are others that give birth to young ones. There are some species of sharks which have a placenta like humans and give birth to young ones. All sharks reproduce using internal fertilization.

It is a very common belief that sharks are man eaters. In fact, in many cases sharks have been held accountable for the death of humans. But, this is not always the case. Not all kinds of sharks are deadly. As a matter of fact, it is only ten shark species out of the total four hundred species that could pose a risk to human beings. Sharks are known to attack only when they sense some threat or danger. Not every shark is a man eater, but all have pointy teeth, capable of inflicting injuries.

As compared with a number of other species, sharks are the longest living. Though the actual life expectancy of sharks is not known, the largest of sharks may live up to 100-150 years. On the other hand, the smaller ones can easily make it through for a minimum of 20-30 years.

Now that you've acquainted yourself with these dazzling facts, you are sure to be fascinated by this sea animal.