What are some hibernating critters? What are the small animals that need to hibernate?

Frogs (including toads) Frogs and toads are both members of the tailless order amphibians, and amphibians are cold-blooded (ectotherms), and their body temperature is affected by air temperature, while species distributed in non-tropical regions vary with temperature.

Snakes are the most typical and most common hibernating animals, snakes should not provoke them when hibernating, because of hibernation, snake venom has been accumulated in the body, at this time the snake venom is the most powerful. Whenever winter comes.

Earthworms burrow deep into the ground in winter, and there is a temperature that suits them, but after all, it is winter, and when the temperature drops below 20, the earthworm will stop growing, start hibernation, and warm up the next spring.

Hibernation is also called "winter sting". The extreme reduction in the vital activity of some animals in winter is an adaptation of these animals to the adverse external environmental conditions in winter. Bears, bats, hedgehogs, polar squirrels, frogs, snakes, etc., all have hibernation habits.

Individual species of mammals, such as monoforales, marsupials, insectivores, pterocoda, rodents and primates, as well as brown swifts and hummingbirds in birds, all have hibernation behaviors, which are called hibernation animals, that is, isotherms. These animals are smaller in size and have a higher metabolic rate, and require more energy to maintain a constant body temperature than large homeothermic animals. Animals such as bears and skunks are paralyzed in winter, but their body temperature does not decrease or decreases a little, and they are easy to wake up, and are known as semi-hibernating animals.

Ectotherms are also paralyzed in winter, but their body temperature changes passively with the ambient temperature, and when the temperature drops below a tolerable temperature, they are not awakened, but are frozen to death. This behavior is quite different from the hibernation of homeothermic animals. It's called hibernation.

Hibernating critters include: snakes, frogs, squirrels, bears, polar squirrels, chinchillas, European dormice, golden hamsters, bats, hedgehogs, tortoises, etc.

Hibernation is a state in which an extreme but regulated decline in body temperature, metabolism, and other physiological activities is performed as an adaptation to reduced energy expenditure. This definition does not include seasonal or diurnal dormancy when ectothermic organisms react passively to a drop in ambient temperature. Thus, true hibernation is limited to birds and mammals.

Hibernation can be divided into three stages: onset, deep and out-of-sleep.

1. Falling asleep: It is generally believed that the rapid increase in weight until it stays at a relatively stable high level means that the animal has the internal conditions to fall asleep. Otherwise, the ambient temperature is low, but the animal still does not sleep. After the body temperature is set to close to the ambient temperature, it will fall into a deep sleep.

2. Deep sleep: The length of this stage is uncertain, generally up to several months. At this time, the physiological state changes dramatically. Breathing is markedly reduced, as in the hedgehog's breathing movement, from 6 18 breaths per minute at room temperature, to 1 3 breaths per minute (28 18).

3. Sleep: At the beginning of awakening, breathing changes from rhythmic to intermittent. After several paroxysmal breaths, it becomes rhythmic breathing, and the frequency is getting faster and faster, such as 60 breaths per minute for hedgehogs, and then it tends to calm down after waking up, becoming 36 to 40 breaths per minute.

There are many animals that have hibernation habits. But it is concentrated in temperate and cold zones. The animals listed below also refer to those that live in temperate and cold zones.

1) Reptiles. Such as snakes, lizards, turtles and other animals.

2) Amphibians. Such as frogs.

3) Fish. 4) Molluscs. Such as snails, shellfish, etc.

5) And a considerable number of perennial insects also have hibernation habits.

6) Some small mammals also hibernate habits. Such as rodents, bats, badgers, martens, spiny moles, etc.

7) Among large mammals, only bears have hibernation habits. Such as black bears, brown bears, horse bears, the Arctic.

Small animals that need to hibernate are hedgehogs, frogs, turtles, marmots, snakes, dormice, squirrels, toads, etc.

1. Hedgehog: Hedgehog is a heterothermal, unable to regulate the temperature of the body by itself, when the temperature decreases in late autumn, the body temperature of the hedgehog will drop, unable to maintain its own activities, at this time it will enter the dormant period, and will wake up after sleeping for five months.

2. Frogs: Frogs are cold-blooded animals, and when the ambient temperature is too low in winter, frogs will freeze to death, so when winter comes, frogs will hide in caves, mud or underwater to hibernate and wake up after the temperature rises in spring.

3. Turtle: Turtle is an ectothermic animal, when the water temperature is below 10, it will lie quietly in the bottom of the water silt or loose soil with cover to hibernate, and the hibernation period is generally from November to April of the following year.

4. Groundhog: Groundhog is a kind of rodent, when the temperature is below 10 for a long time, it will hibernate naturally, the time can be as long as 3-6 months, and it will wake up naturally when the temperature warms up.

5. Snake: Snake is also a cold-blooded animal, when the temperature begins to drop and become cold in winter, the body temperature of the snake will drop, the function of the snake body will decrease, when the temperature drops to 10, the snake stops all activities and begins to hibernat.

6. Dormice: Rodents, dormicea. It is named because of the habit of hibernation. They are all small in size and resemble rodents, while most species have tails that resemble those of the squirrel family.

There are three types of critters that need to hibernate:

First, the hibernation of amphibians and reptiles such as snakes and frogs, their body temperature is in harmony with the surrounding environment, and if the ambient temperature drops, the body temperature will drop and enter a state of hibernation, which cannot be adjusted.

Second, squirrels and other animals maintain a constant body temperature at normal times, and when hibernating, their body temperature can be lowered to a temperature close to the surrounding environment, but in order to avoid freezing body fluids below 0, their body temperature is maintained at around 5.

The third species, bears, bears in hibernation its body temperature only drops a few degrees, but can not eat for a long time and be asleep, in the strict classification should be close to sleep and hibernation between, hibernating mammals can use special factors to control the neurohormonal system to regulate the metabolic state of the organs.

Predisposing factors

Hibernation is triggered by external factors, such as a drop in ambient temperature and a shortage of food in the fall. But some experts believe that the gradually shortening of the days is a hibernation signal that leads to changes in a number of intrinsic factors, such as changes in hormone levels and seasonal changes in the regulation of the biological clock.

The biological clock appears to influence animal behaviour such as fat storage and preparation for hibernation. There are also pending studies on the anesthetic effect of high concentrations of carbon dioxide at hibernation sites, which may also be a predisposing factor for hibernation. Increases in ambient temperature and accumulation of metabolites may be signs of arousal.

Animals that need to hibernate are snakes, frogs, turtles, squirrels, wasps, hedgehogs, polar bears, earthworms, snails, bats, dormice, etc.

Hibernatio is a state in which body temperature, metabolism, and other physiological activities decrease, effectively reducing energy expenditure. Hibernating species can be broadly divided into two categories, namely active hibernating animals and passive hibernating animals. Animals that need to hibernate are snakes, frogs, turtles, squirrels, wasps, hedgehogs, polar bears, earthworms, snails, bats, dormice, etc.

There are 3 types of "hibernation":The first is the hibernation of amphibians and reptiles such as snakes and frogs, whose body temperature is in harmony with the surrounding environment, and if the ambient temperature drops, the body temperature will drop and enter a state of hibernation, which cannot be adjusted. The second type is squirrels and other animals whose body temperature is usually kept at a constant temperature, and when hibernating, their body temperature can be lowered to a temperature close to the surrounding environment, but in order to avoid freezing of body fluids below 0, their body temperature is maintained between 5.

The third type is bears, whose body temperature drops only a few degrees when hibernating, but can sleep without eating for a long time, which should be close to sleep and hibernation under strict classification.