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Great white shark
Sharks attack humans because they are particularly sensitive to smells in seawater, especially the smell of blood, and the low-frequency vibrations or small amounts of bleeding from the irregular cruising of wounded and sick people can attract them from a distance, thus inducing their ferocious, murderous nature when catching food.
Most sharks are mild. Many people who are attacked by sharks are mistaken for seals, and the frequency of the sound of the human leg hitting the water will attract sharks to hunt for food. Many people who are attacked by sharks can survive because sharks do not feed on humans.
Instances of sharks attacking divers are very, very rare. Shark skin does not have such a strong ability to damage, multiple rows of dense teeth and the strength of the shark are the key, in the shark's attack, amputation and blood loss are the greatest damage to people.
Sharks vary in size, ranging from as small as 18 centimeters in length to as large as 18 meters. Whale sharks are the largest sharks in the sea and can reach up to 36 feet (12 meters) in length. Despite its large size, the whale shark has the smallest teeth among sharks.
The smallest shark is the dwarf horn shark, small enough to fit in your hand. It is about 20 to 27 centimeters long and weighs less than a pound. The largest shark in the world is the whale shark, with some reports reaching up to 18 meters in length.
One of the largest confirmed whale sharks in the world was found on November 11, 1947 at Babaisland, Karachi, Pakistan, which was about a meter long and weighed about a ton.
According to Australian shark experts who have been in the sea and the shark's long-term life, sharks can remain motionless at the bottom of the sea and will not suffocate. Sharks differ from bony fish in that they do not have a swim bladder to control snorkeling. If you stop swimming, most of the sharks will sink.
In order to increase buoyancy in the water, the shark's liver has a large amount of oil.
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Sharks may attack humans because they use them for food. When sharks spot humans while hunting, they mistake humans for food and attack them. It is also possible that humans provoke them or that human behavior threatens sharks, which can also cause them to attack on their own initiative.
There are also some more curious sharks, such as lemon sharks, which will take the initiative to attack when they encounter humans. Some sharks with a very ferocious personality will also take the initiative to attack people. <
Sharks attack not only humans, but also their own kind. Although they are relatively large, they do not have a high IQ, and they cannot tell if the creatures around them are their own kind, so they will attack their own kind when they lack food. Although sharks are ferocious, they also have natural predators in the ocean.
Their natural predator is dolphins, dolphins have a higher IQ, and their actions are more flexible, and the sound waves emitted by dolphins will also affect the judgment of sharks, so under normal circumstances, sharks can't beat dolphins.
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1. Sharks can injure humans by mistake, and their muscular and huge bodies require a lot of energy to drive, and humans cannot provide them with high-fat meat. The shark just mistakenly thinks that someone is some kind of animal that it usually eats. Once the shark tastes it, it will realize that it is not its usual food, so it will let people go;
2. Shark attacks often occur when humans are fishing with spearguns in seawater, sharks are attracted to the signals emitted by the dying fish, and then use their Lorentz ampulla to detect these signals. Once the shark arrives at the scene of the incident, it becomes very agitated and cautious and aggressive when faced with food, and the shark can easily mistake people for its usual prey and attack them;
3. Sharks will attack people, sometimes because.
There are many effects, such as medicine, and the snakes in the field also catch voles to catch. Snakes are great herbs! Hehe!!
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Ah, it seems that there is no difference.