In 1975, the United States released a classic thriller called Jaws. In the film, the great white shark attacks humans, cruelly depicting the bloody scenes of humans devouring them to the fullest. So much so that when it comes to ocean overlords later, you will think that it is a great white shark. Indeed, sharks are indeed one of the most dangerous animals in the ocean.
shark
Of the more than 200 different species of sharks that exist in the world, one shark is even more terrifying than the great white shark. It can attack the U.S. submarines, and bite the iron wall of the submarine directly out of several holes. Let's take a look at this fear from the deep sea, the Dharma shark.
Fear from the deep sea, Dharma shark
There are three kinds of Dharma sharks, namely the lip Dharma shark, the Brazilian Dharma shark and the cigar Dharma shark, of which the cigar Dharma shark is the most common, and the Dharma shark is generally said to be a cigar Dharma shark. If you want to look at the size of the shark, the Dharma shark is a very inconspicuous shark family.
Dharma shark
It was first discovered and recorded in the Brazilian seas of 1824. They are small parasitic sharks that live in deep-sea areas in warm seas all year round. The living range is distributed in the world's major oceans between 30 degrees north and south latitudes, and it can be regarded as a relatively common shark.
They are very small, only about 42-56 meters, that is, about half a meter. The figure is round and cylindrical, the eyes are large, dripping, and the rough look is still a bit of an alien visual sense.
Crumpled Dharma shark
They have two biggest characteristics, one is the teeth. The secret to this small, but ferocious shark is its teeth. Unlike other common fish, their teeth are jagged and look like saws. Its lower jaw has 19 large teeth, which are extremely sharp, while its upper jaw has 29 small teeth, which are arranged in a disorderly arrangement.
When they aim at their prey, they bite with their sharp jaw teeth and tear it back and forth with their bodies. This allows them to bite their food accurately and ensure that their prey will not die immediately. Often their prey will leave a wound like a hole, resembling a cigar. That's why they're also known as cigar Damo sharks.
The teeth of the Dharma shark
Another feature of dharma sharks is that they have a light emitter on the abdomen of their body, which can emit a green glow. When active at night, they have an organ with a "light emitter" in their skin.
The melanocytes in the skin are free to decide whether they need to glow to attract their prey. This has to admire the cleverness of the Dharma shark, first "friendly" through the green light to attract prey, and then tear with the teeth to bite and crush. The whole predation process is precise and fast, and the accuracy rate is extremely high.
A glowing Dharma shark
Ferocious Dharma shark
When it comes to the variety of prey in the ocean that have been preyed upon by Dharma sharks. Great white sharks, dolphins, seals, etc. are their regular operations. Generally speaking, wounds bitten by Dharma sharks take 2-3 months to recover slowly.
Since dharma sharks are directly bitten off the entire flesh, even if they recover, they will leave a mouthful of scars. Although the Dharma shark is small, the amount of food is still amazing, so it is often possible to see a variety of animals that have been attacked by them.
Their offensives are fast and accurate, generally premeditated, organized, and step-by-step.
1. Dharma sharks will use their luminous properties in shoal waters to attract prey closer. Of course, there are also active attacks
2. When the prey is close, as long as it can be eaten, rush up and bite it
3. Using the strong adsorption of the lips and sharp teeth, pull the flesh off the prey alive
4. After getting the hand, the Dharma shark will immediately leave, disappear into the vast sea, and begin to look for something new.
The whole process is less than 1 minute, and they immediately solve their prey and move to the next one. In the regular operation of the Dharma shark, there are occasionally some particularly tough targets, and they are accidentally targeted by them. Here I have to say, killer whales.
Whale after being attacked by a Dharma shark
As the top food chain in the ocean, killer whales can also be said to be invincible, but they have not escaped the clutches of the Dharma shark. Killer whales have very well-developed brains and have great physical strength. They usually fight in groups, so it's often possible to see a swarm of killer whales together. They often hunt in groups and are able to coordinate well in teams to hunt prey larger than themselves.
On the food list of members of the killer whale family, almost 9 other species of sharks are in their pockets. However, it is such a "little bully of the sea" and the "kiss marks" of the Dharma shark found on their bodies.
Dolphin after being attacked by a Dharma shark
When biologists used infrared rays and infinite radio waves to detect the habits of animals on the seabed in the deep sea, they saw an adult killer whale with scars on the corners of its mouths. The scar appears to be a round pit, and its size and shape are very similar to the operation of the Dharma shark. In addition, that sea is also a place where Dharma sharks often haunt, so it is most likely the masterpiece of Dharma sharks. Throughout the history of The Dharma Shark's attacks, there are even more amazing things to come.
The domineering behavior of the Dharma shark
If the Dharma shark attacks the living creatures in the ocean, it may be just an element of luck, not enough to explain its toughness, then if it does not even spare the ships of the US army, it should be able to prove how ferocious they are. That's really a solid pimple.
The iron skin that the Dharma shark has bitten
In the early 1970s, the Cold War in the United States and the Soviet Union reached a freezing point. In addition to the war between the two countries in the field of space on the surface, it is also a secret competition in the field of the ocean. Once, when the US military was on a mission, it found that the submarine's underwater detection function was useless. After a series of investigations, it was found that there were round pits on the iron sheet, and the rubber layer was directly bitten.
Newspapers at the time reported on the Dharma shark attack on submarines
So the U.S. military replaced the outer cover with a stronger glass fiber and then coated with epoxy resin (commonly known as fiberglass). In the next 10 years, 30 submarines of the US military have been destroyed by the mysterious passengers. No matter what kind of material, it is not immune. This is extremely dangerous for U.S. submarines.
It wasn't until 1971 that Everet Jones published a paper stating that "cigar sharks" (Dharma sharks) were to blame for circular wounds in fish and cetaceans. After comparing the traces on the submarine, it was determined that it was the masterpiece of the Dharma shark. This should be enough to prove that they are indeed the hegemons of the ocean.
brief summary
In recent years, we have also heard rumors of Dharma sharks attacking humans. In March 2019, Eric Shore was attacked by a Dharma shark in the Caves of Kevi, leaving serious scars on his abdomen.
Scars left by Dharma sharks after attacking people
In the face of such an ocean hegemony, we should have a stronger sense of self-protection. Understanding the properties of these marine life also allows you to better avoid tragedies. Pay more attention to me, there will be more useful science in the future.