Twenty years ago, any biologist conducting scientific research in the Arctic would not use words such as skinny and weak to describe polar bears.

In people's general impression, polar bears are always the strong Arctic overlords.

They have no natural enemies in this land and can run carefree on the ice sheets. Their huge bodies can even make the earth tremble.

They swim in the ocean, and their strong forelimbs and soles can provide them with web-like functions, allowing them to shuttle freely in the sea.

Some polar bears can even migrate between lands hundreds of kilometers apart through the ocean. They spend most of their lives floating on sea ice and only land on land during the breeding season.

Another benefit of sea ice is that it provides polar bears with a stable food source - seals.

When seals breathe and rest on the sea ice, they are likely to become a meal for polar bears. In addition to seals, polar bears occasionally eat the carcasses of some whales.

Even if polar bears are not so lucky and fail to hunt seals, the layer of fat stored under their skin can still provide them with energy for a certain period of time.

"This layer of fat makes them look strong," Bi Fang said.

The body shapes of polar bears and brown bears are completely different. Their fat layers are extremely thick and their body frames are larger to accommodate and support huge things, so the proportions of their heads and bodies are completely different.

The difference between the two is visible to the naked eye.

The head of the polar bear is relatively small, the neck is slender, the hind limbs are slightly longer than the fore limbs, and the body is leaning forward; while the brown bear has a round head, a short and thick neck, no obvious difference in the length of the limbs, and the body is parallel to the ground.

Even non-professionals can easily distinguish the two species. How come professional staff at animal protection organizations cannot recognize the brown bear just because it wears a white vest?

The so-called albino brown bear "Qiao Yin" on the Internet was mistaken for a polar bear and was sent to the Arctic twice. The story is nothing more than a false compilation.

Although no albino brown bear named "Qiao Yin" came to the Arctic twice, many polar bears actually lost their homes and were forced to go inland in search of food.

That was the beginning of this century, and everything began to change.

When exploring the Arctic, people can occasionally find polar bears reduced to skeletons, which look like walking skeleton bears.

If these polar bears can no longer find food, they will inevitably starve to death, but their weak bodies can no longer withstand the intensity of hunting, and their death is doomed.

The acceleration of global warming is making the life span of sea ice shorter and shorter, making it very difficult for polar bears to hunt. They may face increasingly tense living conditions and higher mortality rates. In order to obtain enough food, polar bears must

They can only travel to further areas to catch prey.

Polar bears have left the Arctic.

Over the years, polar bears have been fighting against some adverse factors. The disappearance of these polar bears also tells humans that they have lost the battle without natural enemies.

"Polar bears freed from sea ice lose vital food like seals, but in southeastern Greenland we found an isolated and genetically distinct population of polar bears."

"Unlike other polar bears that rely on sea ice for survival, these bears hunt year-round on fresh water ice near ocean glaciers, where sea ice conditions are close to what we predict will be the Arctic environment at the end of the 21st century."

From the past to the present and then to the future, Bi Fang fully explains why the polar bears in Greenland seem to be living a good life.

"The polar bears here may be the only ones that can survive in the future. They are more adaptable to the environment."

Bi Fang stood on the ice field, looking at the giant bear looking at him in the distance, and smiled.

During the days of galloping on the snowfield, Bi Fang saw many creatures, which brought him a great sense of novelty. Recently, he set his sights on an Arctic female bear, who took her children on the ice field every day.

Looking for food and watching it from a distance is very interesting.

The huge Arctic female bear moved forward with her huge body swaying, and her young cubs followed behind her. Her attention was often attracted by other things around her. When she came back to her senses, she found that her mother had already walked away.

The little polar bear got up in a panic, running and jumping to keep up, and then its attention was attracted by ice cubes or stones on the roadside, and the cycle continued.

"For many endangered animals, they only have one chance, and the reduced base gives them no chance of trial and error. They are not like the hares in Australia. Even if a special racial virus is developed, there is still a large enough base to ensure that there will be antibodies.

Individuals can still reproduce stably."

"Not to mention that many animals, plants and creatures cannot be effectively counted. Most of the time it is not even clear whether they are extinct."

"The extinction risk of many species may be much more serious than we imagined. For example, Australia's northern gastrointestinal brook frog was discovered and completely extinct in less than a year."

[Whoever kills will be killed. The money was taken away by others, and now others have to bear the consequences. Even if they become extinct, it will not affect me, who even has to pay to enter the zoo.]

【Suffering in life makes people boring, alas:-(】

[The development of human beings is to remove the wooden planks in the wooden house to keep warm in winter, but there is still a cement house built next to it. If the wooden house is completely destroyed before the new house is built, human beings are not far from extinction. But if the wooden planks are not removed, some

People will not be able to see the sun the next day.]

"Many people may not understand the impact of the extinction of such small things, such as the Pinta Island giant tortoise or the spotted softshell turtle. It has no impact on our lives at all. Protecting animals is more out of a reason.

Kind of compassion.”

“But I think species protection is like playing Jenga. It’s a building block game. I don’t know if you have ever played it. It consists of a large number of square wooden blocks neatly stacked into a large cuboid.

Extract individual wooden blocks from it until the cuboid collapses after whoever extracts it."

Water friends have a clear understanding. Many people may not have played this kind of game, but they have also heard of it. It is now used as a metaphor, which is vivid and vivid.

"Species protection is to minimize the number of building blocks that are pulled out and protect the biosphere from collapse."

Bi Fang smiled and said: "I have said similar words many times. No matter how much I say it, it seems like preaching. It's just that this time's survival is about to end. It seems that I can't sublimate the theme without doing something. It reminds me of

I used to have to have an ending when I was writing a composition.”

"So start having fun."

It has taken hundreds of millions of years of evolution for the biosphere to become what it is today. During this period, countless species continued to appear and disappear, and they also experienced various reshuffles and restarts. Human beings are the biggest beneficiaries of this round.

Of course, the extinction of one or two species cannot destroy the entire body shape, but their extinction is a warning of huge changes in the environment. At present, humans have no way to repair the damage to the biosphere out of thin air, so it is already a good idea to avoid its continued deterioration.

Bi Fang believes that in the future, humans will definitely explore a development method that is more beneficial to themselves and the biosphere.

As soon as he finished speaking, the young polar bear accidentally tripped and fell to the ground because it was chasing too fast. It rolled several times and its fluffy hair was covered with dry snow.

The polar bear mother finally noticed her naughty child, turned around and bit the back of the cub's neck, shook it a few times, shook off the snow, and helped it stand up again.

The two bears, one big and one small, continued walking towards the distance.

The audience who saw the same scene burst into laughter. Many female fans felt their hearts melting. The bear was so cute.

And more people are still discussing what Bi Fang said just now.

[Not long ago, the Yangtze River white sturgeon also became completely extinct]

[I first got to know the Yangtze River white sturgeon in a text called "Living Fossils". It was an endangered species at the time, but it is gone now, which is a pity]

[Each species has its own unique advantages. For example, artemisinin is extracted from Artemisia annua. Each species has the potential to bring huge benefits to humans. Humans protect animals not only for their kindness and morality, but also for their kindness and morality.

And it is also to protect yourself and give yourself an extra way out in uncertain crises in the future.]

[For humans, it is a bad consequence of destroying the environment, but humans will not become sinners. Natural selection means survival of the fittest. Human beings destroying the environment will gradually no longer be the "fittest", so they will protect nature. 】

...

Mid January.

Bi Fang has survived in the Arctic for more than ninety days, and there is only less than a week left before the end.

Three months of survival in the wilderness was the longest mission Bi Fang had ever done so far, and his whole image was completely different from when he first came here.

Hair that has not been taken care of for a long time does not look oily because it is washed frequently, but it still looks a bit sloppy because it is too long.

This is unavoidable. Bi Fang can simply shave off some of it, but in the cold Arctic, this is completely unnecessary. On the contrary, thick hair can also insulate heat to a certain extent.

The overall body weight has also been reduced to a certain extent. Although I have been hunting during this period, it has inevitably declined, but it has not decreased much. It is still maintained at about 80 kilograms, which is probably the state before gaining weight.

Come and go, there happens to be no change, everyone is happy.

This further proves that Bifang's survivability ability is indeed at the top of mankind.

In the same program in the previous life, the environment was not even as bad as Bi Fang. When they were in the forest, almost all the contestants would lose a lot of weight. In some cases, they would even lose dozens of kilograms. It was terrifying.

But this actually only shows that the contestants are not capable enough. After all, if surviving in the Arctic for 100 days meant losing weight, the Inuit would have become extinct long ago.

"The Beauty of the Sun and the Moon"

Bi Fang only felt a little uncomfortable in the early stage, but later quickly controlled his living condition and entered a stable living environment.

From one environment to another, he can still live like a native, or even better. All this illustrates Bifang's ability.

He has the ability to survive stably for a long time in one of the harshest environments on earth, and even has the energy to feed six big dogs!

Sled dogs can eat more than people. In other words, Bifang can even feed ten people by himself!

This horrific conclusion made everyone realize one thing.

If we really come to a doomsday environment, as long as a meteorite does not hit the earth and destroy the entire planet at once, this guy will definitely be the last person alive, and he can even take others with him to survive.

Today, Bifang went out as usual. He put on a snow-white scarf, greeted the six sled dogs, gently closed the wooden door, and locked the latch.

There was no need for such a thing in the desolate Arctic. It was not until after an attack by Arctic wolves that Bi Fang thought it was necessary to install one to prevent sled dogs from suddenly running out.

After inserting the wooden bolts, the cabin shuddered slightly. A few smoked rabbits hanging on the edge of the cabin swayed a few times. The snow on the edge of the roof fell. There was a blizzard some time ago, and the top of the cabin was completely covered with snowflakes.

Yes, but the slope angle is too large and the snow is not that thick.

Seeing the swaying smoked rabbit meat made the sled dogs on the side salivate. Bi Fang looked up and patted his forehead.

"Forgot to put them in."

If you don't take them back to the house, they might be eaten by something when they come back.

Collecting the edges of the smoked rabbit meat and putting it inside the house, Bi Fang drove the sled and set off again, traveling on the vast ice field and witnessing more scenery.

The temperature is still very low, only about minus 30 degrees, but compared to the minus 60 degrees in the snowstorm some time ago, it can already be called "warm".
To be continued...