Why do some animals eat themselves?

Nature is magical, in the animal kingdom, some animals will eat their children, some animals will eat their mates, and some animals may eat themselves, in order to leave the chance of survival to a better kind, it is a mechanism of survival of the fittest.

Most of them are to replenish nutrition and not let themselves starve to death. The hen will eat the eggs to supplement her own nutrition in order to give better chicks.

Eating species is more common between males and females, especially during mating, because the females need to obtain the energy to produce offspring after mating.

We usually have a lot of small actions of self-eating, such as biting our own nails, or pouting and biting the skin on the wall of the mouth, but in nature, many animals eat their own food to a very large extent, not simply like biting nails, some animals will eat some parts of their body, this behavior is called "self-eating phenomenon". <

There are many reasons for this phenomenon, for example, if you want to survive in nature, you must conform to the climate and environment of nature, adapt to some living conditions, and have to carry out some purification or self-eating behaviors, for example, there is a creature in the sea called "sea squirt", which is a marine animal with a relatively simple biological structure.

At first, they are in the form of swimming, and later their larvae will only attach to the surface of rocks or some marine objects, and they swim a bit like tadpoles, which are like some of our common caterpillars.

The same needs to be transformed, becoming a different form from before, the shape of the adult sea squirt is like a bag, the volume is relatively small, and the surface looks uneven, the shape evolution is different from before, his lifestyle has also changed, in this process some organs of the sea squirt are absorbed by themselves, this is what many people say "sea squirts in the life history, because metamorphosis will eat their own brains", in fact, this behavior is not so bloody, they just carried out these organs**, It's just another useful organ. <>

There are also people who say some mammals.

It will eat part of its body for some different reasons, for example, some animals will eat the placenta after giving birth, this phenomenon is relatively common, and some experts say that it has the effect of relieving pain for animals that have just given birth. <>

There are also bears or tigers, if they accidentally fall into some trap or trap, and want to escape, they can only bite off the leg or foot that is caught, because they want to save their lives, this phenomenon is very pitiful.

That is, some animals will eat their companions in the face of some harsh environments, so that they can survive better.

Animals eat their own meat, probably to feed their young, so they eat themselves.

It's that some animals will eat themselves at a certain stage, because that's their rule.

It's been so long since it's been so long, why did animals evolve into low-end behaviors like grabbing something to eat? Instead of drawing energy from physical movement, let the world be filled with peace, evolve more intelligent beings, and let them learn and create without distractions. I think the same is true of the birth of the universe, and maybe there are despicable intelligent beings watching all this.

As long as all the creatures on this earth have mouths, they have to eat to fill their stomachs in order to survive.

Metabolism, which draws energy through food, maintains body temperature, and ensures the normal functioning of the body.

The vast majority of plants in nature have chlorophyll, and many terrestrial plants also have roots, so they can absorb the chemical elements they need from the soil or water bodies and obtain energy through photosynthesis and make the nutrients needed for survival, growth, and reproduction, this mode of survival is called "autotrophic" in biology; Except for a very few lower animals (such as green-eyed insects), animals do not have chlorophyll, so they must obtain various nutrients and energy needed for survival, activity, growth and reproduction through ingestion of food, this way of survival is called "heterotrophic" or "feeding" in biology, and this "feeding" is what we see animals eating. The answer to why all animals have to eat is as follows: In order to live, many animals have to look around for food every day. An important role of food is to provide energy.

Animals also convert their food into carbon dioxide and water. The energy released is synthesized into ATP (adenosine triphosphate), a "high-energy compound", which is used to supply the energy needed for various life activities. In addition to providing energy, the second important role of food is to provide the "parts" needed to replace the body.

Amino acids that make up protein molecules, fatty acids and glycerol that make up fats, vitamins that are necessary for the maintenance of normal life activities (proteins that catalyze chemical reactions, "additional components" of enzymes), need to be "extracted" from food. When it is first formed, it needs to eat food, even the tiniest bacteria, all need food, because the process of survival will consume energy, animals can only survive by absorbing the energy in the food and converting the energy into the energy of the animal, otherwise the animal will die because of the exhaustion of the energy in the body.

Hibernating animals have already begun to prepare for hibernation, they eat a lot of food, and they store a lot of nutrients in their bodies. And the savings should be large enough to sustain life throughout the hibernation period. When winter comes, the animal enters the hibernation period, nests in the hole and does not move, and sometimes does a small amount of exercise, at this time the body's metabolism will be very slow and slow, blood circulation will be slow, and energy consumption will be minimized.

When the nutrients stored in the body are almost exhausted, hibernation ends. If the preparation is insufficient, the animal will end its hibernation early and come out in search of food. After hibernation, the animal will collapse somewhat, so it will eat a lot of food.

However, most animals are homeothermic animals and cannot reduce the rate of metabolism. So you need to eat often. Animals obtain nutrients by eating to meet the needs of survival and reproduction.

Don't eat. Animals will not be able to get adequate nutrition and will starve to death.

We know that there are animals and plants in nature. Plants are rooted in the soil, do not run, do not forage for food, and seem quiet, as if they do not need to eat; Animals, on the other hand, are hungry and will look around for food, and if they can't find it, they will find ways to find food. Why is there such a clear difference between animals and plants?

In fact, in biology, there are concepts of autotrophic and heterotrophic concepts, and the two are mainly distinguished based on the carbon source of biological use. Carbon dioxide can be used as the main source of carbon, i.e. autotrophs, such as various plants, seaweed, etc. They are self-sufficient by producing the nutrients they need for life and can use carbon dioxide to produce organic matter.

Heterotrophic organisms cannot use carbon dioxide as the main carbon source, but use carbon-containing organic matter as the main carbon source, that is, heterotrophs, such as all kinds of animals, cannot be self-sufficient, and must obtain the nutrients needed for life from other carbon-containing organisms. Of course, there are some heterotrophies, which are autotrophic when there is no organic matter, and heterotrophic when there is organic matter, such as microorganisms of the Rhodospiraceae family.

All animals have to eat, and of course people have to eat. We should also note that the car needs to be filled with gasoline and the fan must be plugged in, otherwise it will not be able to move; We get nutrients from food, and these nutrients, in addition to replenishing our tissue cells, are also burned into calories in our body. Part of this heat is used to maintain our body temperature; The other part is used for the energy we need to exercise and work.

Haven't you heard? It's impossible to want the horses to be good, and to make the horses not eat grass! 1 As the saying goes:

People are iron, rice is steel, and if you don't eat a meal, you will be hungry. "You can say that food is life! If a person goes on a hunger strike, then the consequences can be imagined.

When people are in a good mood, their appetite is greatly boosted, their interest is high, the wind is torn down, they gobble up, and they feast happily; When people are irritable, their appetite is affected, resulting in "unpleasant food and uneasy sleep", which is about a physiological phenomenon controlled by the pituitary gland. Why, it is up to the experts to explain. Food and water are the energy sources you need to survive, and they can be transformed into your life engine.

Without constant replenishment of food and nutrients, your motivation for life will be depleted. You have to think and move every day, and all of this is consuming protein and calories in your body. The digestive system is like a machine that converts the food you eat into your daily protein and calories, so you have to add food to your body every day to get the necessary energy replenishment.

As long as you think carefully, the grains, meat, eggs, milk, vegetables, fruits you eat every day. can be transformed into your life! What an amazing and wonderful thing this is!

Let's cherish the abundant food that nature has to offer us! Don't waste them! Wasting them is wasting your life, you say?

I wish you the best of luck, good food, and a long life! 2 The human body is made up of cells, and the most important component of cells is water, and without water, cells will become dehydrated and die. The body's body temperature is regulated by water, so why do we sweat profusely after strenuous exercise and when the weather is hot, the evaporation of water can take away the heat.

We urinate every day, what's in the urine? A lot of water, what else? Toxin!

To urinate is to detoxify. Why are newborns particularly delicate? Because the moisture content is very high!

Why do older people have wrinkles? Because they are all dehydrated.

No matter what kind of organism it is, it needs energy to sustain its life, and plants can get energy directly from the sun through photosynthesis. Animals, on the other hand, cannot photosynthesize, so they can only obtain energy by eating. And the food **, from the first plants to the current livestock.

The answer to why all animals eat is as follows.

In order to survive, many animals have to search for food every day.

An important role of food is to provide energy.

Animals also convert their food into carbon dioxide and water. The energy released is synthesized into ATP (adenosine triphosphate), a "high-energy compound", which is used to supply the energy needed for various life activities.

In addition to providing energy, the second important role of food is to provide the "parts" needed to replace the body. Amino acids that make up protein molecules, fatty acids and glycerol that make up fats, vitamins that are necessary for the maintenance of normal life activities (proteins that catalyze chemical reactions, "additional components" of enzymes), need to be "extracted" from food.