Shark, as an ancient cartilaginous fish creature, has existed on the earth for hundreds of millions of years. Among them, the oldest surviving goblin shark can even be traced back to 130 million years ago, and it still continues today.
Goblin sharks that have lived 130 million years
span , The rise of land mammals. During this period of time, the ancestors of mankind were able to climb the ancestor beast. From a mouse-like animal, it evolved into many true animal subclasses including humans and whales. The goblin shark remained motionless, and its shape was similar to 1.3 It was the same 100 million years ago.
Climbing ancestor beast
The most ugly shark in the history of the Japanese scientist in Yokohama 1
139, is suspected to be the most ugly shark in the history of the Japanese scientist in Yokohama 1 p1span1
1139 Goblin sharks have been found in the sea. It is the only shark that lives in the deep sea. It is extremely rare. It has a high degree of recognition and is obviously different from other sharks.
Great White Shark
are usually ugly, gray and pointed muscles. Sharks are generally ugly and have grey and pointed body muscles.The whole is streamlined and the evolution is very complete.
Goblin sharks are soft and have soft muscles. Their skin is generally transparent, and when they are caught ashore, they will be red, but this is not the original color of the skin. , But because after reaching the land, the pressure changes and the blood vessels protrude. At the same time, its skin will be wrinkled due to lack of water.
Goblin shark that was fished ashore
, its spiky mouth is full of spiky teeth, The snout is nearly half a metre long and is the most prominent of all sharks, so it is also called European sharp-snout shark.
Although they look like alien creatures and can reach a maximum size of 5-6m, they are by no means a tiger shark like aquatic tigers. Their loose body structure determines its weak physical function. They do not have strong power and move very slowly in the sea. Because they have lived in the deep sea for a long time, their eyesight is also very degraded. How did such a weak shark continue to this day in the perilous sea?
Super pressure resistance, the achievement of deep sea overlord
First of all, their living environment is very special. The general shark activity depth is more than 100m in the photosynthetic zone, where although there are abundant fish resources, competition is also great.
Goblin sharks in the deep sea
to 1,200 deep seas, and goblin sharks live in the deep sea of 250 to 1span.At such a depth, sunlight cannot be irradiated, and the extremely strong water pressure discourages most marine life. Killer whales, sharks and other marine top predators cannot survive at this depth.
But goblin sharks are not affected. They live in high-pressure, dark, and cold waters for a long time. In the barren deep sea, they have honed a unique set of survival skills.
Goblin sharks prey moments
span1 span With every move, once a prey approaches, he suddenly stretches out his mouth and opens his throat. The combination of the two greatly expands the capacity of the throat, creating a large negative pressure in the throat, sucking the prey in, and then shrinking the mouth. Back, a few rows of nail-like teeth can bite the prey.
Through this retractable mouth, it can save a lot of energy for chasing prey. Compared with active attack, waiting for rabbits is their most common way of hunting. They are not picky eaters, squid, crab And all kinds of deep-sea fish are their food.
Goblin sharks are searching for prey
Span1span is a food animal that can save energy in the deep sea. A fish without a swim bladder,It is necessary to constantly swim in the water to ensure the body's upward floating. Generally, sharks have a large liver to regulate buoyancy by controlling liver fat, but even so, the overall density of sharks is still greater than that of sea water.
But the liver of the Goblin Shark is much larger than the average shark, accounting for a quarter of its body weight, which makes its body weight close to sea water, even if it is not swimming. Shen.
Great White Shark
But even the Goblin Shark’s brain power is not very good. Take advantage of the ability to adapt to the special environment of the deep sea and become the overlord in the dark undersea world.
130 million years are enough to do a lot of things. A large number of creatures have evolved wisdom. Is it a wise choice to be willing to live in the underwater world like a goblin shark?
Goblin shark caught
It depends on whether it is too successful to evolve
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_sp 139 Strength, wisdom, complexity, the theme of life is always only one: survival and reproduction, this is the only criterion.
our ancestors,It was originally a kind of orangutan living in the forest, but because it couldn't compete with other orangutans in the forest, it had to go out of the forest and evolved the ability to walk upright. In order to cope with the complex and changeable environment, the brain capacity continued to increase and evolved into the south The ancient apes are not the evolution of human selection, but the environment that forces humans to evolve.
Australopithecus
It is not the necessary conditions for the survival of the whole creature to deal with the living conditions of the complex life. It is still a minority.
Goblin sharks live in the deep sea. In addition to consuming a lot of energy, their smart brains are useless. What they need is to consume less energy and capture more prey.
Biological evolution
The ultimate goal of life is to survive. Occupying an ecological niche without being extinct is a success in itself. Goblin sharks have not changed for hundreds of millions of years. It can only prove that their ancestors did very well. The environmental changes for hundreds of millions of years do not require them to change their own. Body structure.
When most of the marine life is busy, from cartilaginous fish to bony fish, from aquatic organisms to terrestrial organisms, when it comes out of the sea of blood, it has nothing to eat Worried,When other animals beat their heads in order to survive, it stays in the dark away from disputes.
As an animal that has survived the extinction of dinosaurs, even today with the deteriorating ecology of the earth, the population of goblin sharks is still stable, and it is difficult for humans to hunt them. It is a successful creature. This may be the real wisdom!
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