There is a feared venomous snake living in Texas, USA---the Western diamondback rattlesnake. The body length of this rattlesnake is between 91-122 cm, and the longest can reach 224 cm.

If there is a chance to come back, I believe that the American man Jeremy will never pick up the severed snake head again; because this severed snake head almost killed Jeremy; The doctor injected Jeremy with anti-venom 26 times in the hospital before finally pulling him back from the hands of death.

In Texas, USA, there is a kind of frightening venomous snake --- Western diamondback rattlesnake . The body length of this rattlesnake is between 91-122 cm, and the longest can reach 224 cm. It contains highly venom in its body and likes to prey on birds; when the prey is less than 2/3 of the rattlesnake's body length, it will suddenly attack the prey, and most of these prey die from paralysis caused by the venom released by the rattlesnake.

What Jeremy encountered while mowing the lawn in his yard was a Western diamondback rattlesnake;

The first person to spot the snake was not Jeremy, but his wife Jennifer; at first Jeremy's wife Jennifer was concentrating She was mowing the lawn, and suddenly a snake suddenly raised its head in front of her, and its tail kept making rustling sounds, as if it wanted to attack her; Jennifer was so frightened by this scene that she quickly backed away; and shouted Her husband Jeremy came to help.

Jeremy was worried that his family would be harmed. When he saw the snake, he did not hesitate and knocked the snake unconscious with the shovel in his hand. Then chop off the snake's head.

The next tragedy happened; 10 minutes after the snake's head was cut off, Jeremy thought that the rattlesnake was dead, so he picked up the snake's head with his hands without any protection. Unexpectedly, at this time, The snakehead was able to open its mouth again and bite Jeremy's hand fiercely. When Jeremy's wife saw this, she quickly stepped forward and pulled the snake's head out of her husband's hand, but it was too late. The snake venom had already been injected into Jeremy's body.

The snake venom was so powerful that Jeremy lost consciousness and passed out just on the way to a nearby hospital.

In the hospital, the doctor conducted emergency rescue and full-body examination on Jeremy; they found that his condition was very pessimistic, his blood pressure dropped throughout his body, his organs began to fail and hemorrhage, and he could only use a ventilator to maintain his life. .

Fortunately, the doctors and Jeremy's family did not give up on Jeremy's treatment. After 26 injections of anti-venom serum, Jeremy was finally revived.

Decapitated snake bites are not limited to foreign countries, similar accidents have occurred many times in China;

People in Guangdong, China have a habit of eating snakes. Some people estimate that at its peak, Guangdong people could eat snakes in a day. 20 tons of snake; therefore, many snake meat restaurants have been spawned in Guangdong Province. Many years ago, a chef in Foshan, Guangdong accidentally lost his life because of improper handling of snakeheads.

In 2014, in a restaurant in Foshan , the chef was processing a cobra and planned to make a snake soup for the guests. For a cook who often dealt with snakes, he no longer had any fear of venomous snakes. An experienced person can chop off the snake's head, pull off the snake's skin, and put the snake meat into a pot to stew.

The Foshan chef who handled the cobra this time did not put the severed snake head in a safe place immediately, but directly put the snake head aside; when the chef thought of handling the snake head, it was already 20 minutes later.

At this time, the cobra's body had been skinned and put into the pot. According to reports, the snake's head should also be dead and not a threat to humans; but what is unexpected is that when the chef tried to pick up the snake's head with his bare hands, the snake's head "flew into the air" "Qi" bit the chef's hand.

Cobras are highly venomous. If you are bitten by a cobra, you are likely to lose your life if you do not seek medical treatment in time. The chef also knows how powerful this snake is, and he was very nervous and reacted violently after being bitten. People around him heard his cry for help. , and also made an emergency call for him in time. But the outcome was unfortunate because the cook's body reacted violently, accelerating the spread of the snake venom. Rescue workers were unable to revive him.

Until now, there are still many unfortunate incidents on the Internet where snakes were bitten after their heads were cut off. It is said that the snake has been decapitated and should be dead. Why can it still launch a fatal attack on the person who killed it? Could it be true that the rumors that snakes "hold revenge" are true, so the snake attacks in revenge for the person who killed it?

Why can a severed snake head still attack the person who killed it?

In fact, the decapitated snake bites not only the person who killed it, but anyone who comes into contact with the snake's head may be bitten; all this stems from the snake's " conditioned reflex "

conditioned reflex: The conditioned reflex theory is The core content of Pavlov's theory of advanced neural activity refers to the temporary neural connection established between external stimuli and the organism's response under certain conditions.

After the snake has its head cut off, it is actually dead; the brain can no longer direct the body to attack, let alone remember who killed it.

The culprit that actually directs the snake's head to attack is the conditioned reflex nerves on the snake's head; after the snake is decapitated, the muscles of its head can still maintain their original movement functions for a period of time.

When an object comes into contact with the snake's head, the snake's head will instinctively bite when it is stimulated. Just like the well-known " knee-jerk reaction to ". It's just that the conditioned reflex nerves of the snake head are too sensitive. It doesn't need to be stimulated with as much force as the knee-jerk reaction. Just a gentle touch may trigger the conditioned reflex of the snake head.

Therefore, the snake head did not attack the person who killed it in order to "retaliate" against him; rather, the killer accidentally triggered the snake's conditioned reflex nerves when picking up the snake head.

Experiments have shown that after a snake is decapitated, it has a strong bite force within 10-20 minutes, and it takes 1 hour to completely lose the bite force .

Snakes are very scary animals. We should stay away from snakes, especially those venomous snakes. According to statistics, there are more than 3,000 species of venomous snakes living on the earth, 15% of which live in our country.

The venom toxins in their bodies can be divided into four types:

neurotoxin - which can make the poisoned person's muscles tremble, foam at the mouth, lie down, etc., and eventually the respiratory muscles will be paralyzed and die;

blood circulation toxin - It can make the poisoned person's heartbeat accelerate, body temperature rise, and nose bleed; eventually heart failure or Death from shock ;

Mixed toxins - symptoms of both neurotoxins and blood circulation toxins; ultimately death from shock or suffocation caused by respiratory paralysis;

Cytotoxins - mostly found in the body of sea snakes , generally showing symptoms of poisoning Because, muscle weakness, eyelid drooping can lead to death of the poisoned person within a few hours to a few days.

The venom of venomous snakes is mainly stored in the venom glands, and there are specialized fangs responsible for outputting venom; this is also the fundamental basis for judging whether the snake is toxic;

The venom fangs grow on the upper jaw of the snake head, and between the fangs and the venom gland is the venom gland duct; it The venom is responsible for transporting venom, while the venom glands are mainly responsible for producing and storing venom.

Relevant research shows that the Gabonese viper can eliminate up to 2400mg of venom from its venom glands at one time;

The venom glands, fangs, and venom gland ducts are all located in the head of the venomous snake; this also explains why the severed head of the venomous snake can still output a large amount of venom. of venom.

Final words

Incidents of bites by decapitated snakes often occur, but it is not the snake's "revenge"; the fundamental reason is that "the snake-killer triggered the snake's conditioned reflex nerves when touching the snake's head", causing the snake's head to attack the snake. The snake's venom glands and fangs are all grown in the snake's head, so the severed snake head can still release a large amount of venom to the snake-killer;