Today, after 4.6 billion years of silent operation on the earth, the creatures living on the earth have come and gone for an unknown number of generations, and the animals that live in nature are even more strange and strange. From the perspective of biological evolution, each organism can survive must have its own survival strategy, large or small is not said to be the absolute master, even if it is the only higher organism on the earth, human beings, can only be said to be the "master of the earth".
One thing loses one thing, which is the best explanation for the competition of natural creatures. A larger animal is a natural threat to small animals, and body size is still a high priority in the laws of nature, and small animals have an instinctive fear of this. Just like the great white shark that suddenly appears in front of humans, even if it rarely hurts people, it will be frightened, but even the ferocious great white shark has a feared animal, and its cruelty can be said to be the nightmare of marine animals, which is the protagonist of today's introduction - cigar Dharma shark.
The cigar Dharma shark, also known as the cigar shark, is a small deep-sea shark that often swims vertically to the upper layers of the water body at night. Most small sharks with a size of less than 50 centimeters are not safe to swim around in the water, and generally fish of this size are either traveling in groups or quietly hiding around the coral reef to avoid predators. In fact, it may be surprising to say that this deep-sea ghost killer is looking for prey, the larger the prey, the more likes, in their eyes such prey has only one characteristic - more meat.
How "arrogant" is this shark, which can be tough to this extent? It is not too much to swim vertically in the water body, cigar sharks also have the unique luminous organs of deep-sea fish, and the melanocytes in the skin can emit green fluorescence, especially in the dark deep sea where no sunlight can reach, green fluorescence is very easy to attract large predators such as whales.
This small cigar shark has a cylindrical body with two small dorsal fins and a huge tail fin, such a structure can make the cigar shark have excellent explosive power, when the guys looking for prey are attracted by the green light of the cigar shark, they think it will be a delicious meal, and the cigar shark can turn this "dream" into a complete "horror game".
Cigar sharks are ferocious by nature, feeding on squid, tuna, tuna, and sometimes attack large animals such as whales, sharks, dolphins, and even the iconic bite marks of cigar sharks have been found on great white sharks and killer whales.
Cigar shark hunting skills are quite exquisite, in some specific time periods, especially at night, cigar Dharma shark will swim to the surface, using its own glowing characteristics to perfectly attract the attention of large predators, but also indirectly hide their own body shape, full of green light so that predators such as tuna mistakenly think that food is close, cigar sharks will rely on their own small body shape and explosive power, suddenly turn around to attack, the rows of sharp teeth embedded in the body of the prey, with the body rotation way back to tear and rotate, quickly "cut" The next piece of meat, like digging ice cream with a round spoon, is extremely cruel.
When large creatures such as whales feel pain and twist their bodies, the cigar shark will shift its "position" and suck on the other side of the prey's body with its sucker-like lips, tearing off a piece of flesh as it did before. If there are more than seven or eight cigar Dharma sharks attacking a dolphin at the same time, then basically the dolphin must be scarred. And if dozens of cigar Dharma sharks attack a whale at the same time, the whale's body will leave a dense wound like a honeycomb, and the horror of this small shark can be seen!
However, the cigar shark's attack strategy is not to kill each other, sharp teeth will not "cut" into the deep part of the body of large animals, hindered by the limitation of body size, often only hurt the skin and shallow flesh, sharp teeth make the entire process of "cutting" meat controlled within 2 seconds, but also make the wounds of large animals very flat, conducive to healing.
The teeth of the cigar shark's upper and lower jaws are not the same, the upper jaw has a small and upright median tooth, about 15-16 small teeth on each side, the small teeth have a certain external oblique angle, the lower jaw teeth are large and upright, the median teeth are large and erect, the middle teeth are equal to the two sides, 12-15 teeth on each side, the base is rectangular, the sides overlap each other, the crown of the teeth is a lateral flat triangle, the edges of the teeth are very sharp and smooth, the upper jaw teeth are used in 3-4 rows, and the jaw teeth are only 1 row in use, which can perfectly cut the skin and flesh.
Cigar sharks also like other sharks will constantly change teeth to ensure the sharpness of teeth, but unlike other sharks, the edges of cigar shark teeth are biting together, so their teeth are very strange, they are a whole row of replacements, and the old teeth that are replaced may be swallowed by it.
Attacks like cigar sharks make it easy to think of piranhas living in the Amazon rivers, swarming to bite prey, and indiscriminately biting, not "picky eaters". Cigar sharks attack the object of large whales, killer whales, sharks, tuna, and then to a variety of seals, dolphins and other large marine animals, of course, they will also encounter humans, no accidents, encounter human cigar sharks will also indiscriminately "shave" a few pieces of meat away.
There was a case of cigar shark attacks on humans, in Hawaii, a swimmer was training for a long swim at night, when a cigar shark suddenly attacked him, first on the leg, then on the chest, causing deep trauma, this is the first recorded cigar shark attack on humans, of course, this will not be the only attack on humans.
Such a strong cigar shark is interested in any "prey" that passes by. In the 1970s, they repeatedly "attacked" the rubber sonar domes of U.S. Navy submarines, causing sonar acoustic oil to leak, which in turn affected the submarine's navigation. The Americans initially felt that this was a secret weapon from the enemy, and later solved the situation by installing it on a sonar dome with fiberglass. In the next decade, about 30 more U.S. submarines were damaged by bitten rubber sheaths on the surface of the cables, and it turned out that they were the ones who did it, as well as marine research equipment and communication cables.
In fact, cigar sharks are found in all oceans of the world, mainly distributed in the deep waters of the world's oceans, the central Pacific Ocean and northern Taiwan between 30 degrees north and south latitude. Because they are not important economic fish and are small, there are very few opportunities for people to see their true faces, and often only a few fisheries are occasionally found in trawling.
In fact, the reason why cigar sharks form such ferocious behavior habits is largely evolved in a complex marine environment, and these skills are of great significance for them to find food and survive in their own very small size. Therefore, the old saying that there must be "a skill", "more than one skill", "more than one body", is still very important.