The beautiful and majestic Shark is one of the most famous animals and known by all people throughout the world, this is due to its easily recognizable physical characteristics, and also because of the various stories that exist about the ferocity and lethality of these majestic beasts. If you want to learn much more about the Characteristics of the Shark, the different types and their diet, do not hesitate for a moment to continue reading this great article.
Shark Characteristics
These large and ferocious fish have been inhabitants of the earth for millions of years, even before all the continents were populated. Since the appearance of these, until today they have evolved in an incredible way, this makes them extraordinary animals that do not stop improving with the passage of time and their evolution.
According to most scientific studies, there are at least 360 species of sharks distributed throughout the planet. These large predators are also regularly known as sharks, and some, like the white shark and the bull shark, are called silky sharks. Due to the same regulations that these sharks maintain, their unbridled depletion could cause a giant imbalance in the ocean.
It is worth mentioning that sharks are members of a family of fish, which are made up of cartilage skeletons, a tissue which is quite flexible and much lighter than bones. The way of breathing of these animals is through the membranes which are located on both sides of their body and like any other type of fish, they breathe under the sea through their gills.
The skin of sharks has a characteristic bluish-gray color, which helps them to easily camouflage themselves from their predators, and also to stealthily attack their victims. On a regular basis, the upper part of its body can be found in a much darker color, and in the lower or ventral areas we will find a white or very light color. It should be noted that their skin is quite rough, dense and above all very resistant, these characteristics are ideal to protect themselves well from their predators.
The size of sharks can tend to vary a lot depending on the specific species that is being talked about, a great example is the whale shark, which is the largest species of shark that exists, its size can range between 16 and 18 meters in length. One of the great characteristics of shark skin is the presence of dermal denticles, which allows them to move much more silently when hunting.
Shark teeth vary greatly depending on the species; however, the quality that they all possess equally is the ability to replace every tooth that they may have lost at the time of the hunt. In addition to this, sharks can easily perceive electrical impulses, which is one of their main tools when hunting.
The behavior of these sharks tends to be much more active at night to hunt more effectively, in addition, it should be noted that most of the time you will be able to observe these animals being completely alone, although there are also different species of shark that are usually much more sociable, especially in the reproductive stages.
Another characteristic that very well defines the behavior of these fish is their enormous capacity for adaptation, an example of this is the bull shark, which can live comfortably in freshwater as well as in saltwater. It is estimated that sharks usually have an approximate life expectancy of between 20 and 30 years.
Shark Natural Habitat
These majestic sharks can be found distributed throughout each of the oceans around the planet. However, sharks evaluate the living conditions within their region, such as temperature, depth, and primarily the abundance of food. Despite all this, as we mentioned earlier, sharks have an incredible ability to adapt, they can live calmly in shallow waters, in the open sea or even at the bottom of the ocean, although it is well known that sharks always They will prefer to live in waters with temperate or tropical temperatures.
Food
The diet that sharks follow is very varied, since they can feed on almost any living being in the ocean, this includes, of course, fish, molluscs, plankton, crustaceans, and even many species of sharks can feed on other sharks. The main senses that they use to identify their prey are smell and their great vision, it should be noted that they will always prefer to attack by surprise to make a much more effective hunt.
Contrary to popular belief, sharks do not tend to eat a lot, because they really do not need a lot of food to recompose all the energy they spend on their long journeys, according to different studies it is said that sharks usually eat 2% of their weight on a daily basis.
Reproduction
Reproduction among sharks begins to occur once they finally reach sexual maturity, maturity which usually arrives approximately at the time they are 9 or even 15 years old. The most common is that they give birth to one or even two young.
One of the main characteristics of the shark in terms of its way of reproducing, is the fact that depending on its species, they have different ways of reproduction, since they commonly give birth to their young in a viviparous way, which indicates that they conceive to a fully formed little newborn shark. However, these can give birth in an oviparous way, that is, with eggs; or in an ovoviviparous way, which tells us that first an egg will form which will hatch inside the mother's womb, and that is where it will develop before being able to leave.
Species
Throughout the world there is a great variety of these majestic sharks, and the area where they are found depends entirely on the characteristics of the species in question. Many of these can reach gigantic lengths, while many others can actually get quite small, and both with completely different behaviors and preferences regarding their environment. The most common species among the 360 existing ones are:
White shark
The white shark, or as its scientific name, Carcharodon Carcharis, says, is the quintessential shark and the most recognized on the entire planet. This reaches a length of up to approximately 7,5 meters; The name of this species comes from its characteristic white color on its ventral area, while on the back it usually has a much more grayish color, it may well be lighter or darker.
Bull shark
The bull shark, or also known by its scientific name, Carcharias taurus, is one of the best known species of these sharks, however, it tends to have different names apart from these two, such as "tiger shark of sand” or also “damsel shark”. This majestic shark is a member of the Odontaspididae family, and these same sharks also tend to reach average lengths of up to 2.5 meters, although many specimens have reached 3.5 meters.
It is also very important to consider the great weight that these ferocious sharks can have, a weight which usually ranges between 90 and 200 kilograms. The color of the skin of this shark is completely gray, except for the region of its belly, where it is white. Specifically, this species of shark is well known for being able to live in freshwater and very salty water without any type of complication.
Thresher Shark
The thresher shark has a huge number of names, of which “big-eyed fox”, “rabón”, and “spectacled fox” stand out, but despite all these names it has, its scientific name is Alopias superciliosus. In the case of the thresher shark, the color of its entire ventral area is completely white, but unlike the varieties mentioned above, the rest of its body has a fairly characteristic dark brown color, a color which is often confused with a very dark gray color, or even with the color black.
It should be noted the large size that these can have, on average the size of the thresher shark is usually between three to four meters in length, however, there are many specimens which have reached five meters. On the other hand, on average their weight usually ranges between 160 and 360 kilograms.
Blue Shark
In the case of the blue shark, its scientific name is Prionace glauca, but like the species mentioned above, the blue shark has different names depending on the region of the world where it is found, among all these names we can find some like They are: blue shark, caella, tile, and caguella.
The color of this species is quite sublime, like all the species mentioned above, in the area of its belly it is completely white, and all over its back it has a beautiful metallic blue color. These beautiful sharks average sizes of up to 2.5 meters in length, and regularly weigh up to 80 kilograms.
Tiger shark
Galeocerdo cuvier is the scientific name of the tiger shark, in some regions throughout the world it is also often called "sea tiger". This majestic shark is a member of the Carcharhinidae family. This great shark is known worldwide for the great size they can reach, on average their size is between three and four and a half meters in length, however, many of these sharks reach seven meters and can weigh impressively up to 600 kilograms.
This giant shark, like all species, has a white color on its belly, and on its entire back it has a beautiful green or blue color; these same colors are the most suitable to be able to camouflage with extreme ease and attack all their prey with the greatest effectiveness of all, it should be noted that they also have some stripes that give them an appearance extremely similar to that of tigers.
Whale shark
The great whale shark, or as its scientific name says, Rhincodon typus, is the only member of the Rhincodontidae family. This beautiful and large shark has a wide variety of names of which we can highlight, domino fish and lady fish.
In the region of its belly it presents a completely white color, and throughout its back it has an extremely dark grayish color, not to mention that it has several yellowish and white moles, which form lines that can be horizontal or vertical. These sharks are extremely gigantic, as they can reach up to 12 meters in length, and impressively they can weigh up to 20 tons.
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