Why do many animals hibernate? Why do animals hibernate?

In fact, many people are lethargic in winter, and animals even start their long hibernation directlyMainly because in winter, the animals feel very cold, and because they can't find a lot to eat, they choose to hibernate. <>

Animals do not have the same intelligence as humans, so their ability to search for food is far from strong enough, which leads to many animals can not have enough food in the barren winter, they can not find much food in the autumn itself, and they can not eat enough in winter, in order to avoid the loss of energy and hunger, they also choose to hibernate in winter to spend this long time, after all, sleep can retain the body's energy to the greatest extent. <>

Animals don't have as many coats and warm tools as humans in winter, so they will feel colder than humans in winter, even if they have fur, but they can't resist cold wind, frost, rain and snow, which is actually very harmful to health. In order to avoid such cold, animals use sleep to replenish heat, after all, although the body will become cold when sleeping, its perception will be weakened, so animals will not feel particularly cold moments, and they will be able to get through this difficult day. <>

And some animals are the reason for habits so they must hibernate, just like human personal habits, animals also have their own habits, they will hibernate in winter has become a physiological need, which can not be broken, otherwise they will affect their normal physiological health, so they hibernate in winter even if not because of external factors, but also because of racial influence, which is the reason for individual differences.

Therefore, it is very normal for some animals to hibernate in winter, which is just caused by the common factors of the environment and individuals, we should understand and respect, and do not destroy the normal life rules of animals, which is immoral.

Hibernating animals are generally ectothermic animals, their body temperature will change with the temperature of the environment, the temperature reaches zero degrees Celsius or below zero degrees Celsius in winter, and the body temperature of animals will also reach about zero degrees, at this time their vital functions are affected, and their activities are not flexible, in order to maintain the most basic vital signs such as breathing, they will find a safe place to stay quietly, that is, hibernation.

In winter, it is very difficult to find food, and it is better to hide until spring when it consumes more energy in order to keep out the cold. And sleep is the most energy-efficient.

Animal hibernation is the result of natural evolution, because food is scarce in winter, making it difficult to forage for food, so animals need to hibernate to conserve their strength.

Because they are not homeotherms, their body temperature changes according to changes in the outside temperature, and in winter the temperature is too low, and they need to hibernate to stay alive.

Animals will hibernate, mainly in order to adapt to the earth's bad environment and the result of continuous evolution, after hibernation most of the body's metabolism stopped, the cold winter food is scarce, in order to reduce the physical consumption brought by activities, it is spent in hibernation.

Many animals hibernate in winter, and it turns out that only the turtle is the most peculiar!

1.Difficult to adapt to cold weather.

When winter comes, the temperature drops to a certain stage, and it is difficult for these hibernating animals to function in their bodies. If you don't hide for hibernation, you may die. At this point, it is difficult to maintain body temperature.

As a small animal, this is a last resort.

2.Food is hard to find in winter.

As an animal in the wild, when winter comes, it may be difficult to find food. At this time, the energy in the body is difficult to maintain, and only by choosing the way of hibernation and not moving, the energy consumed will be a little less. Many animals will have a full stomach before hibernation, and even achieve the effect of eating support, as long as they do not move for a winter, they can get through it completely.

However, some animals will also wake up early, so it will be a little bad, after all, after waking up, it will be very difficult to hibernate again, and if you can't find the food you need, you will face a state of hunger.

3.Lowers metabolism and improves survival.

In the face of cold winters, it is likely that most animals will have a hard time surviving. However, if there is a hibernation environment, the creation is relatively warm, and if you do not move, the metabolism will be significantly reduced, so that the survival rate of hibernating animals will be significantly improved. It can be seen that this is a reason why not many animals choose to hibernate in order to survive.

The metabolism has been explored, and when you wake up again, you have to look for food in time.

Hibernating animals can be roughly divided into two categories, one is amphibians and reptiles. Amphibians and reptiles such as frogs, snakes, and turtles are ectotherms, and when the weather is cold, they cannot move and enter a state of hibernation.

The other group is mammals. Mammals are further divided into two types: bear and squirrel. Most hibernating animals use pre-stored fat (equivalent to 30%-40% of body weight) for energy during hibernation.

When the outside temperature drops, they lower their body temperature. Reducing the number of pulses and breaths saves energy, but the body temperature of bear-hibernating animals does not drop much, staying around 38°C or 30°C. Why is that?

It turns out that bears are huge, and it takes a long time for their body temperature to rise up after it drops. In addition, bears have a "trick" that doesn't have to be so energy-efficient. That is, the rock state, which never excretes during hibernation.

If urine is excreted, nitrogen compounds are excreted from the body, and instead of urinating, bears use the kidney wall to absorb them and reuse them as nutrients. Now some scientists have noticed this in bears"Trick", is exploring how it can be used to ** people with kidney disease.

So, do small mammals with squirrel animals also have this "trick"? Unfortunately they don't. Some of these animals need to dig holes in the ground to create a hole that can safely accommodate their bodies during hibernation, so they don't weigh much, up to 9 kilograms.

Animals such as bats have to "get up" from time to time to drain their feces and urine. But like bears, they store enough fat for energy first, so they don't eat or drink during hibernation. They are occasionally found storing food, but that is in case of famine when they wake up from hibernation too early in the spring.

However, animals such as voles are still inseparable from their food during hibernation. They wake up every 10 days during hibernation to excrete, then eat some food before going back to sleep. Their body temperature drops from 37°C-38°C to 8-10°C, and in some cases, even down.

What happens to these animals if the temperature is too low during hibernation? Generally, because their hibernation place is underground, it is difficult for the temperature to drop below 0 °C, but if the temperature of the hibernation place drops to about -10C, they will get up and shake the muscles of the body, so that the body produces heat, however, if they have to do so, it will be a good drain on the skin, so they are very cautious when choosing a hibernation place, and they must consider it in many ways, neither too cold nor too hot.

Hibernating animals are frogs, toads, snakes, earthworms, bears, crocodiles, hedgehogs, turtles, squirrels, bats, ants, wasps, lizards, snails, and many more.

Among animals, amphibians mostly need to hibernate, similar to snakes, lizards, turtles, etc., and once it is winter, they will find their own nests and crawl into hibernation.

There are hundreds of species of hibernation animals, the most common of which are ground squirrels, hedgehogs, frogs, snakes, bears, snakes, crocodiles, turtles, etc.

Hibernation (aka'Winter sting') 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. 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.

Animals that need to hibernate are hedgehogs, bats, snakes, frogs, turtles, ants, snails, and bears.

From the beginning of the summer, these animals gradually accumulate nutrients in their bodies to the fullest basal metabolic consumption required by the body throughout the hibernation process.

Whenever the climate gradually becomes colder and food is scarce, many animals enter hibernation to fasting and adjust the body, reduce the body's metabolism, and maintain it at a relatively low basal metabolic consumption, in order to obtain a larger living space and adapt to the changing internal and external environment.