Why don t carnivores eat hibernating bears in winter?

Because hibernating bears are woken up, and once they fight back, then the carnivore may be injured or even killed, so carnivores do not choose to eat hibernating bears.

Mainly because the bears themselves are very powerful, and their fur is also very good, basically they can't attack the bears, and the hidden ones are relatively private when they hibernat, and they can't be found at all.

Because when the bears wake up, they will have a fierce fight, and it is not worth the calorie consumption in the winter when there is little food and clothing.

This is because bears generally find a relatively safe place when they are hibernating, so these predators will not find any traces of these bears at all.

<> Why Carnivores Don't Eat Hibernating Bears.

The difference between bear hibernation and hibernation of other animals.

Hibernation, as the name suggests, is when animals "sleep" during the winter months. During hibernation, the animal's body temperature, heart rate, and respiratory rate all drop significantly to lower levels.

This is advantageous because they use very little energy, so they don't have to eat or have to deal with bad weather.

Of course, the same is true for bears in winter (who sleep a lot), but there are some differences from hibernation. During this time, the bear's heart rate and trembling breathing rate also decrease, and again, it does not eat or release body waste.

However, the decline in bears was small. For example, the body temperature will only drop by 7-8 degrees Celsius, while squirrels will almost reach freezing; The bear's heart rate drops from 50 to around 10 beats per minute, while some squirrels drop from 350 to around 4 beats per minute.

Because of this, there is one of the biggest differences, bears often wake up during hibernation and will move around, and they will even "move" when they feel unsafe, while animals that do hibernate will hardly wake up, or only once every few weeks.

Many people are more curious about whether these hibernating animals will be eaten by ** eaters, especially such conspicuous animal signs as bears.

The answer is: animals that really hibernate will be eaten if they don't dodge well, but bears won't!

Even when hibernating, predators such as wolves do not have the idea of hitting bears, because they wake up at any time; Animals that really hibernate can't do this, such as snakes that are dormant in the dust, and they are often eaten by mice.

The hibernating "bear" has long been hidden!

Only Han [bear] can be eaten by carnivores!

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.

In fact, small mammals are more common to hibernate phenomenon, because the individual is small, the metabolic capacity is high, and more food is needed, and the winter skin ant sleeps with the locust key to reduce the metabolic rate of lead grip, mammals are mainly rodents, insectivores, and pterocods have hibernation habits, and large mammals only have bears, raccoons, and badgers have hibernation habits.

Moreover, the hibernation of bears also has periodic temperature changes, which belongs to shallow low temperature hibernation, and can wake up at any time, which is very dangerous.

Hibernation is a necessary habit for some animals to survive. Although ursidae are carnivores under a large family, most ursidae animals are omnivores.

And they are too big to hunt for themselves, which is the main reason why they are omnivores. Once winter comes, everything dies. The number of plants that bears can eat is very small, and they are not very good hunters, and they are very large, and they have a lot of energy for sports.

Therefore, in the winter, bears have to hibernate, which is what we talked about above as passive hibernation. Even polar bears that can move in snow and ice need to hibernat, but polar bears hibernate semi-hibernating, or partially. In this state, the polar bear is in a light state of sleep, and if there is any movement, it will be the first to wake up.

Polar bears hibernate little to do with the cold, mainly because of food.

Tigers are one of nature's apex predators. Tigers are known to have a strong hunting ability in nature, and tigers are not picky about their food, whether they are small mammals or large herbivores. To put it simply, tigers in the wild cannot starve.

Habitat characteristics. Tigers live mainly in mountain forests. For example, Bengal tigers live in the coniferous forests of the Himalayas, and Siberian tigers live in the mountainous areas of Siberia and northeastern China.

These habitats are characterized by an abundance of wildlife that provides endless food for tigers who specialize in hunting.

This is because on our earth, animals are divided into cold-blooded and warm-blooded animals, snakes, frogs and horns and other hibernating animals are cold-blooded animals, also known as ectotherms, while sparrows, squirrels and pheasants are warm-blooded animals, also known as homeothermic animals, ectotherms and their names are the same, their body temperature always changes with the change of outside temperature, when the temperature is high, their body temperature is also high, and their metabolic function is also relatively vigorous, so they are more active, and their body temperature drops after the temperature drops in autumn, The metabolic function gradually weakens, and the amount of activity decreases until it no longer goes out to forage for food. Therefore, when winter comes, they will lie dormant in the chain, and their physiological functions are in a very weak state, on the contrary, homeothermic animals have their own constant body temperature, in order to maintain their body temperature, they must forage for food in winter to replenish heat.

Carnivorous mammals, so hibernation is not required.

It's genetic, it's as simple as that.