Why do animals hibernate? What do I need to prepare before hibernation?

Winter is a beautiful season, the most hope is to lie on the bed in the morning to sleep lazy, comfortable, in fact, some animals and humans are very similar, but animals are hibernating, directly sleep a winter, so why do animals hibernate?

Some of the most common animals to hibernate are bears, squirrels, snakes, frogs and hedgehogs.

Bears hibernate because the temperature is very low in winter and there is a lack of food, while bear hunting needs to consume a lot of calories to maintain body temperature, so when it comes to the cold winter, they enter a state of hibernation. Hibernation is a way for them to cope with the cold weather and lack of food. So animal hibernation means animals sleeping in winter?

Hibernation is also a process for animals, where they first need to lower their body temperature to a temperature close to their surroundings. This process probably takes several days when the animal's body temperature is regulated.

When the ambient temperature is close to the ambient temperature, they enter the next stage of hibernation, in which the heart rate and respiration rate of the animals will decrease, and the metabolic rate of the whole body will also decrease, so how long will they hibernate?

Different animal citizens spend different lengths of time, but most animals hibernate for months. So aren't these animals hungry if they don't eat while hibernating? Animals are also very smart, they start preparing for hibernation before hibernation, supplementing enough food and nutrients to ensure the energy of hibernation food.

Moreover, hibernating animals will have a very weak metabolism. What does this mean?

It means that the nutrients consumed will be very small, so the substances stored by these animals before hibernation are enough for them to spend a hibernation period, and when the nutrients stored in the body are about to be consumed, the hibernation period is about to end. Not eating, drinking, or moving, it was a wonderful holiday. And hibernating animals have a secret**, they have a kind of fat on their body, this fat is called brown fat, it is different from other fats, it can provide energy very slowly, like compressed biscuits.

Again, the energy is high. Do animals wake up in the middle of hibernation? Hibernating animals don't sleep all the time and occasionally wake up.

1.The hibernation of animals is entirely a protective action against the unfavorable environment. The main factors that cause hibernation in animals are the decrease in ambient temperature and the lack of food.

Scientists have experimentally proven that hibernation in animals causes a decrease in the function of the thyroid gland and adrenal glands. 2.Squirrels, we can often see squirrels collecting pine nuts from TV, they will hide the pine nuts as a reserve food, when winter is coming, squirrels will store a lot of food in their holes, only if they have enough food to survive in the winter when food is scarce, they are also like humans, they will collect some things to keep their nests warm, such as collecting weeds, leaves, sealing holes with soil, etc., they will reduce the amount of exercise in winter, people who have raised squirrels should find out, Squirrels in winter don't seem to be so energetic.

Cold-blooded animals, they can not regulate their body temperature independently, so they can only reduce the body's metabolism through hibernation, choose the place of hibernation, store food, hibernating animals will generally choose to swallow a large amount of food at one time.

Animals hibernate to prevent food shortages during the winter months, and large amounts of food need to be stockpiled before hibernation.

There are many animals that need to hibernate, and they have different preparations to prepare before hibernation.

There are two broad categories of preparations.

One is like a hedgehog.

Frogs, bears, etc. These animals eat hard from the beginning of the summer, and by the end of the fall, they will eat fat, accumulating nutrients in their bodies enough to meet the body's basal metabolism needs throughout the hibernation process.

Deplete. During hibernation, they sleep profusely, their body temperature decreases, and their heartbeat and breathing slows down to reduce the body's metabolism and keep it at a relatively low basal metabolic exertion until they wake up when the weather warms up. At this time, they lose a lot of weight due to the depletion of nutrients in the body throughout the winter.

The other is food storage. Like squirrels, voles.

The civet rat will store a lot of plant fruits and seeds in autumn, sleep unsteadily during hibernation, wake up when sleeping, eat a little stored food to supplement nutrition when waking up, and then sleep until the weather warms up.

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There is, in addition to the above.

As soon as winter begins, animals begin to perform their "sleep skills", which is the phenomenon of hibernation. When it comes to the sleeping skills of animals, it is really "eight immortals crossing the sea, each showing its ability". Flying insects burrow into the mud, grass or other dark corners, fall asleep, and wake up to the spring or early summer of the following year.

Some of them do not wake up and return to the west, leaving only their eggs, larvae or pupae as a continuation of the family. Fish and frogs sleep differently, the fish swims into deep water, while the frog burrows into the mud, as if taking sleeping pills, and enters a dormant state without eating or moving. This is not the case with rodents, they both sleep and eat, eat and sleep, sleep and eat, so voles should prepare more than 25 kilograms of "dry food" next to the "bed" before entering hibernation, and squirrels collect tremor and open tens of thousands of dried potatoes as a food backup for peace of mind.

Bat sleeping method is the most special, sleeping upside down on weekdays, hibernation still continues to hang upside down, a hanging is a winter. The hedgehog's sleeping method is staggering, when it is asleep, it hardly breathes, throws it into the water, and then fishes it out after half an hour, it is still asleep, a hibernation period can sleep for more than 200 days, such a long sleep, can be called the world's first.

Why do animals prefer to sleep lazily to survive the winter? This is a manifestation of the animal's long-term adaptation to its environment. In winter, when the weather is cold and food is scarce, and the animals are asleep, all kinds of metabolic activities in the body are reduced to a minimum, the heart also slows down, and the pulse and breathing times are reduced, so that the consumption of nutrients and energy is reduced to a minimum.

Animal hibernation is generally divided into three steps:

Choose a place to hibernate: Choose a location where the environment does not change significantly, can effectively avoid enemies, is not easy to collapse, and has enough space to move. Food reserves for hibernation:

Hibernating animals generally choose to swallow large amounts of food at one time, and semi-hibernating animals will store some food at the hibernation site. Entering hibernation: entering the state of sleep, depending on the temperature, the hibernation time is selected before or behind the celebration.

Such as black bears, frogs, toads, snakes, earthworms, polar bears, hedgehogs, crocodiles, turtles, squirrels, bats, lizards, snails, wasps, etc.

Hibernation is a state in which an extreme but regulated decline in body temperature, metabolism, and other physiological activities is observed as an adaptation to reduced energy expenditure.

This definition no longer includes seasonal or diurnal dormancy when ectothermic organisms react passively to a drop in ambient temperature. Thus, true hibernation is limited to birds and mammals.

Hibernating species can be broadly divided into two groups, namely active hibernating animals and passive hibernating animals, the latter such as hamsters, and external factors including photoperiod, food, and outside temperature play a major role in the timing of this hibernation cycle event.