Part of the reason is that Monopterus albus likes to drill in disorder, but more reason is that Monopterus albus can survive in animals for a period of time, but snakes can't eat by chewing directly. After living in snakes, as long as it has the ability to attack, it is dangerous for snakes, and Monopterus albus is just one of these animals. Specifically, it can be said from the living environment of Monopterus albus and the correlation between digestive glands of snakes:

First, the skeleton of Monopterus albus is similar to that of a snake, and it will not be unable to move because it is inside the snake.

Monopterus albus is a triangular bone, and its bone structure is relatively stable, and the bones of Monopterus albus are closely connected, so it will not be out of touch because of sliding too frequently. This body structure is somewhat similar to that of snakes, but because there is a gap in the skeleton of snakes, snakes will be in a rigid state under instant collision, and snakes in this state can't secrete gastric acid, so the swallowed Monopterus albus can move, but snakes can't.

Moreover, Monopterus albus is afraid of heat. When the temperature is above 30 degrees, it will be extremely annoyed, and then it will run around. Although the snake is a temperature-changing animal, its body temperature is still 30-32 degrees. Therefore, the snake is the critical point of eel's body temperature. After it is swallowed, it will wander around. As long as the eel is not too old, it is not difficult to drill through the snake skin.

Second, the respiratory system of Monopterus albus is different from that of ordinary aquatic animals, and it does not use gills to breathe.

Although Monopterus albus has gills, its gill function is degraded, its breathing relies on auxiliary functions, and it also breathes with the epidermis, so it can still survive even in a space with little oxygen, so that it will not die immediately after being swallowed by the snake. The peak time for a snake to digest a food is 20 hours after eating, and then it will secrete a lot of digestive juice, because its general practice is to suffocate its prey in the snake pit before digesting it.

Ordinary birds, frogs and other foods are safe for snakes, as are other snakes. Inexperienced snakes, of course, will not have an early warning about the danger of Monopterus albus, which is similar to snakes. Because it is not digested immediately, Monopterus albus will make waves in the snake and even start looking for its food.

3. Monopterus albus doesn't stay in an environment for long, because it needs to feed, and this cycle is about 12 hours.

Monopterus albus eats scavengers, and its food habits include animal viscera, carrion, etc. After entering the snake, Monopterus albus even saves foraging, just opening its mouth is food, but everything inside the snake is soft, like some fluff and wrinkles on the digestive wall, which is no different from cutting in the eyes of Monopterus albus. It's just the entrance!

Monopterus albus may be afraid when it meets a snake outside. After all, it can swallow itself, but after being swallowed, it will be found that this is a capitalized ingredient, which can only be swallowed but not chewed. What are you afraid of? If it is too big, it will be drilled through the skin!

Therefore, if a snake eats Monopterus albus, the snake will not die and be seriously injured. It is not just that Monopterus albus will drill indiscriminately, but it may be eaten in turn.