The pearl birds, the row of the sentry fox 獴 ... Let's see how the animals are sticking to

Animals also understand the principle of "unity is power". In their laws of survival, the number determines the quality of life!

Desert sentry

Foxy living in the Karahari Desert in southern Africa is a group of "desert sentinels" standing with hind limbs. These small mammals are extremely social, and the number of individuals in a group can reach more than thirty. They will uniformly come out of their own land caves and bask in the sun, and eat the eggs of insects, lizards, fruits, and other animals. When the large troops go out for food, there will always be several individuals actively act as sentinels and pay attention to the danger of everywhere. If they find natural enemies, such as a raptor or a wolf, they will yell to remind their companions, and the entire ethnic group will quickly hide into the hole. saved!

"Silk Road"

This group of east African yellow ants (commonly known as yellow silk ants) wrapped one by one, and a bridge was set up between the two leaves with the body. Adults cooperate with each other, partially holding the leaves, and some of the larvae holding their own groups with the upper jaw, stimulating the larvae to stick to the leaves, thereby weaving a new house. But this is just the beginning of a huge project: For ant colony with a number of individuals, there are still many rooms to be woven!

All the hearts

A group of bamboo catfish are being attacked by dolphins near the seas of the Atlantic Acel Islands. And their self -rescue strategy is to "hold a group": thousands of bamboo catfish form a tight defense circle. Once there are predators approaching, they will immediately scatter and cause confusion. Such a bamboo catfish in the center of the fish is the safest. Faced with this defensive skill, the dolphin also found countermeasures, that is, cooperating with each other. When preparing to attack, the dolphin will be separated and keep communication through sons. When one of the dolphins found delicious fish, they immediately reminded their companions, and then the dolphins who were responsible for driving were turned around and waited for them to surround them.

Bringing Pearl Bird

Beltic grass and birds (pearl birds) are a group of living birds living in the Australian desert (a group of dozens of), and they especially love it. A new recent study shows that this plum sparrow can distinguish the sound of more than 50 companions! They call each other to confirm where there are foods and water sources, or to find their partners and even the birds. As a single -matching bird, the successful busty grass and birds will support each other to take care of the future generations. For example, they will incubate eggs every 30 minutes. If one party is late, the other party will make a request to re -arrange the fair time by changing the tone!

Migration

This group of migrated Homa is about to cross the Mara River in the Malaysia Malaysia National Reserve. This is undoubtedly the most dangerous stage during the entire journey: they may drowns or be swallowed by Nile! From July to October each year, more than 1.7 million horses, as well as hundreds of thousands of gaze and zebras, gathered from Tanzania's mighty ground to Kenya for food. Many predators, such as lions and dumplings, follow the large troops all the way, ready to attack the weak individual in the team. Fortunately, the "three -driving carriage" of the great migration has its own advantages: the main force horses are in the number of horses, and the pioneer zebra has a better vision. Great migration.

Wading mountains and wading

These mussels are firmly fastened on the rocks in a beach in South Africa. They are also living in groups, not only close to the rocks, but also to each other to better resist the invasion of predators such as waves or birds. However, these landscapes are not randomly formed, but that the mussels move slowly by their own ax, and then they are arranged into such a relatively regular structure: 5 ~ 10 cm apart between mussels. In this way, the competition when they prey for seaweed are not so intense.

Reunion

In the winter of the southern hemisphere, thousands of male emperor penguins in Antarctica are hatching eggs. Female penguins are all out for food, and the time lasts for 4 months. The male penguin under the -50 ℃ cold wind is hungry and frozen, and he has to take care of the penguin eggs, and the little penguin hatched during this period. However, the male penguin knows how to form a "turtle armor array": they are heating each other next to each other, and each square meter can have 10 emperor penguins! As a result, the temperature of the center of the birds can be maintained around 37 ° C. In order to prevent the peripheral penguins from frozen for a long time, the entire group of penguins move from time to time: The penguin at the center position slowly moves forward, and the first row of penguins gradually moved to the back, and finally returned to the center of the team to warm up. The scene where these prospective dads are united are really beautiful and spectacular!

Dad

A pine tree in a mountain forest in Mexico seems to be covered with a leaf blanket, but this is actually millions of black veins (monarchy butterfly)! Every fall, orange spots (its color depends on the reflected light. In the picture, the butterfly wings are not ideal than the sunny orientation of the sun, and it looks gray) will leave Canada and northern the United States because they are difficult to tolerate the frost in winter. The journey is more than 4,000 kilometers until Mexico -they will hold a group on the trees there for several months. Once the group is incorporated, the risk of individuals by the predators will be reduced. This also helps regulate its own temperature: Based on a certain heat insulation, it will not be too cold at night, and it will not feel hot during the day. In the spring, the black vein golden butterfly flew to the north again, breeding offspring on the way back.

Written élise rengot

Compiled Ge Hao

Reprinted content only represents the author's point of view

Does not represent the position of the Institute of Physics of the Chinese Academy of Sciences

If you need to reprint, please contact the original public account

Source: New Discovery Magazine

Original title: Animals also hold groups!

Edit: Muyu

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