It is often said that crocodile tears cannot be believed, so why do crocodiles shed tears?

Crocodiles have teary eyes when they eat, in fact, this is due to the fact that the salt in the body of the crocodile is added when it eats its prey, and the tears that come out are a solution containing salt, and the crocodile does this to excrete the excess salt from the body.

In crocodiles, there are special excretory glands, and the outlets of these excretory glands are located just around the tears. So, crocodiles do not shed tears to excrete excess salt in their bodies.

"Crocodile tears" is an ancient Western legend, the legend of the fierce and cruel crocodile will pretend to shed sad tears when eating its prey, this phrase is a metaphor for false tears, disguised sympathy. Later, it was conventionally extended to satirize those who hurt others while pretending to be compassionate and kind.

Crocodiles usually bask in the sun with their mouths open, but in fact, this is their genetic instinct, and even the crocodiles themselves do not realize that they are basking in the sun with their mouths open. In fact, crocodiles are cold-blooded animals and get their energy this way. Crocodiles are cold-blooded animals that maintain body temperature by exhaling heat from their bodies through abdominal contractions and inhaling air in order to exchange heat with the outside world with their mouths open.

The bite force of the crocodile is quite amazing, and it can be said that the crocodile can easily bite the bones of the animal when the mouth is closed. But if the crocodile is closed, the strength of an adult can hold down the crocodile's mouth so that it cannot open. Therefore, when veterinarians examine the crocodile again, they usually tie the crocodile's mouth with a rope so that it is not threatening.

In the water, when the crocodile eats larger food, it will spin constantly, which we usually call "death rolling". Mainly because crocodiles' teeth can't chew, they have to be torn by tumbling, so that large pieces of food can be torn into small pieces, and the crocodile can devour them.

Why do crocodiles shed tears?

The body secretes a solution containing salts. And the way of secretion is tears.

This is a normal physiological reaction, all living things have salt in their bodies, and crocodile tears are a solution of salt.

The body secretes a solution containing salts.

Excess salts from the body are excreted from the body.

Tears are the crocodiles' attempt to expel excess tears from their bodies.

Crocodiles shed tears in order to expel excess salt.

In order to expel excess salt, it will cry.

The crocodile's tears are their own excretion.

One speculation is that crocodiles really shed tears, but that's not because it's sad, for a long time people thought that crocodiles were excreting excess salt in their bodies, turtles, sea snakes, sea lizards and other marine reptiles and some seabirds have salt glands growing near their eye sockets, salt glands enable these animals to remove excess salt from the seawater, so as to get fresh water, so the salt glands are their natural seawater desalination.

1. The reason for the formation of crocodile tears: in order to eliminate excessive salt in the body.

2. The tears of a crocodile is a well-known Western proverb in which a crocodile sheds hypocritical tears before eating a man. In fact, the crocodile is not sad at all, but lubricates its eyes. When the crocodile dives into the water, the instantaneous membrane in the crocodile's eyes closes, allowing it to see the water and protect the eyes; When the crocodile is on land, the membrane is used to moisturize the eyes, which needs to be lubricated with tears.

1. Legend has it that crocodiles shed "tears of sadness" when they devour weak animals. So, there was a proverb very early on: "crocodile tears", and this phrase is often used to satirize those hypocrites.

2. Crocodiles can "shed tears", and there are a lot of "tears", which is a natural phenomenon, not that it is pitying its prey, but just excreting excess salt in the body.

3. The kidneys are the excretory organs of animals, and the excretion function of crocodile kidneys is imperfect, and the excess salt in the body must be excreted by a special salt gland. The crocodile's salt glands are located near the eyes, and whenever the crocodile is devouring its prey, salt water is dripping from the corners of the eyes at the same time, so it is mistaken for the crocodile to shed "sad" tears.

4. In addition to crocodiles, scientists have also found that turtles, sea snakes, sea lizards and some seabirds also have salt glands like crocodiles. The salt glands of these animals are almost identical: a duct in the middle and thousands of thin tubes radiating out of the periphery, intertwined with blood vessels.

They separate and precipitate excess salts from the blood, and then excrete them outside the body through the catheter, which is near the eye. The salt glands remove excess salt from the seawater, and the animal gets fresh water. Therefore, the salt gland can be said to be the natural "seawater desalination" of animals.

Crocodile tears are due to the fact that their eyes need to be kept moist. Crocodiles live in water, but they need to lift their heads out of the water to breathe air. This means that their eyes are exposed to air and can easily become dry.

To prevent dry eyes, crocodiles secrete a clear liquid to keep their eyes moist. This liquid is what we call "tears".

In conclusion, crocodile tearing is a completely natural physiological response that has nothing to do with their emotions. This liquid keeps the crocodile's eyes moisturized, prevents them from drying out, and helps remove dirt and bacteria from the eyes. If you see crocodiles crying, don't feel sorry for them because it's just a normal reaction of their bodies.

First, we need to clear up a misconception: crocodiles don't cry out of emotional sadness. On the contrary, crocodile tears are a physiological response that has nothing to do with their emotions.

Crocodile tears are due to the fact that their eyes need to be kept moist. Crocodiles live in water, but they need to lift their heads out of the water to breathe air. This means that their eyes are exposed to air and can easily become dry out.

To prevent dry eyes, crocodiles secrete a clear liquid to keep their eyes moist. This liquid is what we call "tears".

First, we need to clear up a misconception: crocodiles don't cry out of emotional sadness. On the contrary, crocodile tears are a physiological response that has nothing to do with their emotions.

In conclusion, crocodile tearing is a completely natural physiological response that has nothing to do with their emotions. This liquid keeps the crocodile's eyes moisturized, prevents them from drying out, and helps remove dirt and bacteria from the eyes. If you see an alligator fish crying, don't feel sorry for them, because it's just a normal reaction for them to tremble.