While Yuan Yu was waiting in line to play the tiger handheld, on the other side, Wang Jinxuan was in front of the glass curtain wall, enjoying the beautiful posture of swimming.

The huge tiger body floats and sinks in the water, and the tail floats behind. When you turn around, you can see the white slender beard on both sides of your nose clearly, and the yellow fur of your head is covered with gold in the sun.

The eyes looked at the tourists and showed a dignified momentum in the calm, which made several tourists exclaim and praise.

Through the dark green and swarthy water, you can vaguely see her limbs moving underwater, suddenly slapping a floating bark on the water to play, blinking to avoid the splashing water. After slapping the bark into the water, she swam forward gracefully.

Wang Jinxuan was excited to share her feelings, but looking back, Yuan Yu was still in line.

The original focus on appreciating the tiger was a little distracted.

At this time, a huge science exhibition board hung on the middle wall of the two glass curtain walls. On it, a fierce tiger with fierce eyes and roaring attracted her eyes and couldn't help walking up to see it.

"Tigers are the largest and most shocking large cats. They are powerful predators with extraordinary ferocity and agility..."

There is also a small picture next to it, which introduces the abilities of various parts of the tiger!

When she saw the golden fur, Wang Jinxuan thought of a question she had never thought about before. She wondered, yes, how do tigers hunt with such eye-catching colors?

"In human eyes, the tiger's fur is golden, but most mammals are red color blind and can't see the bright red orange color, including deer, horses, sheep and so on.

In their eyes, the golden fur is almost the same as the color of trees, so tigers can hide near their prey by virtue of the camouflage of their fur. "

"So it is!"

Wang Jinxuan suddenly realized and suddenly thought, "so it seems that the red fur of the little panda is actually a disguise?"

These creatures have evolved wonderfully.

She became interested and then wandered around the exhibition hall to watch other popular science exhibition boards.

A conspicuous display board with the title "why protect tigers?"

In fact, Wang Jinxuan can think of one thing. When she took biology class in high school, she said that producers, consumers and decomposers have their own roles. A complete ecosystem needs any of them.

However, the understanding is limited to this.

"The tiger lives in the forest. It is a pure predator and the king at the top of the food chain.

It mainly preys on wild boar, wild deer, wild sheep and other herbivores, controls the number of these herbivores, and also maintains the forest vegetation.

If there are no predators like tigers in the forest, it will trigger a series of chain reactions.

Herbivores lack the check and balance of natural enemies, and their number increases rapidly. As a result, plants in the forest are eaten in a large area, and other animals or plants living on these plants in the forest will also be affected.

Eventually, the flood of herbivores will be hit hard by disease and hunger, and the whole forest ecosystem will collapse.

Now we can see more and more news about wild boars flooding, eating crops and even harming humans. In fact, it is due to the lack of tiger predation.

Protecting a tiger can keep the forest ecosystem in its territory in a healthy and balanced state.

Healthy forests can purify air, clean water and prevent landslides and debris flows.

Unhealthy forests may lead to animal diseases, and unhealthy animals will also promote zoonosis.

According to a study in South America, there are some key ecological corridors that often occur in pumas, and the risk of AIDS and bird flu is decreasing.

These big cat predators can control the outbreak of diseases caused by plant eating animals, so as to prevent the leakage of diseases to humans.

If we do a good job in protecting tigers, we will ultimately benefit not only tigers, but also forests and other animals, as well as ourselves. "

Wang Jinxuan was awed by the tiger. It turned out that the tiger was not only powerful and beautiful, but also played such an important role in the ecosystem. It's not too much to be called the patron saint of the forest.

Originally, she only liked the cute thing like the red panda and had no special feeling for the tiger, but now she suddenly likes the tiger. The two likes are different. They admire tigers more!

Protect animals and nature. Green mountains and green waters are golden mountains and silver mountains. I've heard this many times, but I don't have any actual feelings.

Some people even think that human beings evolved into the overlord of the earth in order to control other creatures at will?

Tigers, leopards and wolves are disasters! Do not kill clean, but also coexist with them?

The earth is the territory of human beings. How can these disobedient animals survive?

It's best to catch them all in the zoo circus, and only let them act as ornamental playthings and perform a fire jump ring, so as to show the prestige of human beings.

This lack of respect for nature and the supremacy of human conceit have led to many serious disasters.

The increasing number of emerging viruses is largely the result of ecological destruction and wildlife trade.

With human invasion of the wild environment, the risk of new epidemic outbreak has greatly increased.

However, up to now, there are still many people who have not realized this.

This attitude is like a child waving a torch, lighting a fire and playing in the house where he lives. He is still very happy to see the column burned. However, when the fire is big and the house collapses, he realizes that it is wrong, and it is too late to cry and repent.

Wang Jinxuan took two more steps and looked at a nearby exhibition board "the current situation of the tiger".

"About 2 million years ago, tigers originated in Central China.

Among the eight tiger subspecies, Bali tiger, Caspian tiger and Java tiger have been extinct one after another.

There are only northeast tiger, South China tiger, Indo Chinese tiger, Bengal tiger and Sumatran tiger.

A hundred years ago, there were more than 100000 wild tigers wandering in the wilderness all over the world, but now there are fewer than 4000.

The total number of wild tigers in China is less than 100( Optimistic estimation, conservative (less than 30)

Wang Jinxuan was shocked by this shocking figure and stared in disbelief: "is there only such a little tiger left?"

I just learned that the tiger is the patron saint of the forest. It turns out that the patron saint has fallen.

"South China tiger, the ancestor of all tiger subspecies, also known as Chinese tiger, is a unique tiger subspecies in China.

In fact, the South China tiger is not limited to South China. It once spread all over North China, East China and the Central Plains of China.

Due to human activities and hunting, its habitat has shrunk sharply to South China, so it is named South China tiger. It is much more precious than giant pandas.

At the time of the founding of the people's Republic of China, there were still 4000 South China tigers. In just 20-30 years, it became 40, a decrease of 99%.

After 1986, people saw the living south China tiger for the last time in Anren, Hunan. Since then, there has been no accurate record of wild South China tiger. At present, only a few captive tigers survive in the zoo.

The life characteristics of less than 50 South China tigers raised in zoos all over the country have been seriously degraded due to multiple generations of inbreeding.

In biological theory, if the population of a species is less than 1000, the possibility of natural reproduction is very small.

……”

The heavy words on the popular science exhibition board made Wang Jinxuan sigh deeply.