Forgotten by death, it is not the turtle, but the sleeping shark. In 2006, scientists observed a sleeping shark that lived at a depth of 2,200 meters and lived for more than 500 years. According to testing, this sleeping shark was born in the Ming Dynasty, the same age as Wu Chengen. This long-lived shark is called the Greenland sleeping shark, a shark that lives in the cold waters of Greenland all year round.
The average life expectancy of human beings is about seventy years, but this is only a few short decades. On Earth, the lifespan of humans is only a blink of an eye when the dust falls, and there are many animals that can live longer than humans. The longest can reach hundreds of years, and human life is only a few decades in their eyes.
Just like turtles, some turtles have been raised since childhood. Maybe when the owner dies, the turtle is still alive and healthy. Some people say: raise a turtle, maybe in the end the turtle can give you the end, accompany you for a lifetime until death. There are too many unknowns in the ocean, and there are many secrets in the unfathomable seabed.
For example, an extremely long-lived marine creature discovered in recent years - the Greenland sleeping shark. Its lifespan is in units of 100 years, and the longest can reach 500 years. It is already a very long time that a human being can live to be a hundred years old, and it can actually live to be five hundred years old.
If there are Greenland sleeping sharks, the surroundings are particularly good, and the food source is also stable. They can even live more than 500 years, because scientists have found Greenland sleeping sharks more than 500 years old based on calculations and field investigations.
Sharks have always been regarded as marine behemoths and representatives of fierce and murderous creatures. Because they like the smell of blood, they are marine carnivores, and they have a particularly short temper and are easy to bite humans. However, the Greenland sleeping shark sounds less irritable and sounds a little docile.
Don't be fooled by its name, they are also sharks and are no different from other sharks. Even the personality is more irritable than ordinary sharks, and the body is much larger than ordinary sharks. Because it lives on the bottom of the sea, all marine life is basically a food source for Greenlandic sleeping sharks.
In addition to eating large and small sea creatures, Greenland sleeping sharks also like to float to the surface to eat seagulls and shore animals. When some land creatures come to the beach, they are accidentally targeted by Greenland sleeping sharks. It may be swallowed directly by them.
Greenland sleeping sharks sneak up on animals and then eat them with their huge mouths. Because once people found the body of a Greenland sleeping shark, but when they opened its belly, they suddenly found that the bones of land creatures had not yet had time to digest.
Don't look at their very fierce temperament and huge bodies. In itself, it has a great advantage, but God is fair and it is impossible to make the Greenland sleeping shark a perfect creature, they also have weaknesses. The Greenland sleeping shark's biggest weakness is its own eyesight.
Their eyes can barely see things, which is a "blindness". At first, Greenland sleeping sharks had the same vision as ordinary sea creatures, and could see clearly, but then their vision gradually disappeared. At first it was thought that perhaps because the Greenland sleeping shark lives at the bottom of the sea, the bottom of the sea is dark.
So the eye vision of the Greenland sleeping shark gradually deteriorates. This is not the case, their vision deteriorates because they are infected by parasites while sleeping. Because they sleep most of the time, yellowish parasites in the ocean take advantage of this time to burrow into their eyes.
The main food source of this parasite is the cornea of the Greenland sleeping shark. In the end, they will eat all their cornea, and then they will become the current "blind". Not congenital blindness. It is precisely because the eye cannot see that the Greenland sleeping shark's perception ability is very powerful. You can feel the change in the surrounding environment.
Greenland sleeping sharks live so long because their bodies grow more slowly than ordinary creatures. By the time they grow up to adulthood, it may be almost two hundred years. Ordinary creatures may be more than a dozen years, or even shorter.
Adult Greenland sleeping sharks are only about 4 meters long, and the longest is no more than 7 meters. That is to say, after two hundred years, they can grow to four meters, which translates to one centimeter a year. Because Greenland sleeping sharks are solitary creatures, they do not group sharks together. As soon as you are born, you will live on your own.
So they don't like to be lively, don't look at them so long, think about it from another angle is quite lonely. After all, he has to spend two hundred years, and when he is an adult, he can only look for other sharks. It is not good to live such a long life, and the natural environment is far less good than before.
The living environment of Greenlandic sharks has also been affected, and they usually sleep except hunting. It doesn't do other activities in the ocean like other sharks. While sleeping, it is easy to be caught by some people with ulterior motives.
