Why does the snake spit out letters from time to time?

01 The snake letter is the olfactory organ of the snake. When the snake sticks out the tongue, it gets some material particles, and after retracting it, the tongue extends into a pair of small cavities above the front of the mouth, which is called the vomeronasal apparatus, which is not connected with the outside world and cannot directly produce a sense of smell, but it can achieve olfactory function with the help of the snake's tongue. Nasal aids are composed of many sensory cells, which can identify chemicals in particles through the synthesis and analysis of chemical information by the olfactory center.

When the snake is trying to catch prey or is active, the snake will frequently stick out its tongue and vibrate rapidly to detect as much as possible the surrounding environment.

It mainly relies on the tongue to obtain information, so people call the tongue of the snake "snake hyacinth".

After in-depth research, it turns out that the split tongue and the rapid retraction action are both to detect chemical signals in the air. The tongue sticks out of the mouth and adheres to the chemicals in the air, and the snake quickly retracts the tongue into the mouth and inserts it into the vomeronasal apparatus for odor discrimination. The vomeronasal apparatus of a snake is located on either side of the middle of the top of the mouth, one on the left and one on the left, so that the forked tongue can be inserted into the left and right vomeronasal apparatus respectively.

In this way, as long as a small number of chemical molecules in the air (e.g., the smell of prey) are sent to the mucus of the vomeronasal apparatus, they can be distinguished by the sensory neurons there. Therefore, when there are rats, frogs and the like through the grass, its ** release will inevitably be rubbed in the place where it has been touched, and its chemical molecules will naturally float in the air, so the snake can pick up these chemical molecules by stretching its tongue, so as to obtain information about the prey, track the smell and go to prey. Here, the vomeronasal apparatus plays the role of an olfactory aid, because with the vomeronasal apparatus, of course, the olfactory effect is much greater than that of the nose alone.

Experiments have found that a newly hatched young snake that has never eaten food will also stick out its tongue and make an offensive posture when faced with a small animal soaked in water. It is generally believed that the main function of the vomeronasal apparatus may be to distinguish food in the oral cavity from the sense of smell (smell), that is, its role is combined with the role of taste to distinguish food from both smell and taste.

In addition, the olfactory function of the vomeronasal apparatus can also be used to identify the opposite sex. For example, a snake that has degraded eyes and lives underground like an earthworm, called a blind snake, will no longer have courtship if its nose and vomeronasal apparatus are destroyed.

Spit out the letter can capture the odor molecules in the air, and rely on the difference in the number of molecules in different directions to distinguish the direction of the object, just like the human eye distinguishes the distance and direction, for example, when the snake is not moving, it rarely spits out the letter.

Mainly because the snake's sense of sight and hearing is almost zero, which is the concept of being blind and deaf.

Feel the smell and seem to have a warning function until the Komodo dragon? It also spits letters, stronger than a snake. (Some people have mistaken it for breathing fire).

Check out 100,000 Whys and you'll know everything.

The snake that spits out the letter is not necessarily a poisonous snake.

The snake's tongue is a very special organ unique to snakes, reptiles.

Lizards. Classes are also available. Snakes are particularly sensitive to the letter of the snake, they are the snake's olfactory organ, and at the same time it is a way to detect the outside world.

Any healthy snake always keeps swallowing its tongue! But the illness makes the sedan snake will not vomit or occasionally vomit, which is also a judgment pet snake.

Whether it is healthy or not.

The tongue of an animal is usually the organ of taste, but the tongue of a snake is very special and is the organ of smell. It has no taste buds on it, so it cannot distinguish sour, sweet, bitter, and salty tastes. The snake's tongue often sticks out of its mouth, and can stick to or dissolve various chemical molecules in the air on the moist surface of the tongue before judging what has happened.

The reason why the snake does this frequent movement shouting

In fact, they are collecting chemical molecules, which can also be said to be material particles in the surrounding air, and the snake's letter is moist, and when the tongue sticks out of the mouth, it will adsorb tiny molecules that cannot be seen visually on the tongue, and then retract and shake up and down.

In fact, this is because the tongue stretches into a pair of small cavities above the front of the mouth, this part is called a nasal aid, which is not connected to the outside world and cannot directly produce a sense of smell, but it can achieve olfactory function with the help of the snake's tongue.

Snakes' nasal aids are composed of many sensory cells, which can identify chemicals in particles through the synthesis and analysis of chemical information through the olfactory center. After judgment, the snake can accurately capture its prey. When a snake bitten animal escapes, the snake can use its retractable tongue and sensitive nasal aid to locate and track until it finds its target again.

The snake spits out the letter and gathers information.