In fact, species are extinct every year in the world. Under the destruction of human beings, the earth's environment has undergone earth-shaking changes. If we can adapt to this change, we can survive. If you can't adapt, you can only wait for extinction. Coupled with human poaching and random killing, biodiversity has been seriously damaged.
But if a large number of species are extinct at the same time, the creatures above and below these species in the food chain will be hurt first. Their natural enemies will lose food and are likely to leave their original habitat to survive; Their food has lost its natural enemies and will breed wildly and occupy this area. For example, if the extinct species is a bird that feeds on pests and is preyed by vultures, when this bird becomes extinct, vultures will lose their food. Some vultures will starve to death, others will struggle to survive and fly into the city from the big forest. Hungry vultures will even attack humans, and humans will kill them to protect themselves, so vultures will soon become extinct, which will lead to the gradual disappearance of the food chain. On the other hand, pests have no natural enemies, and the world suddenly becomes their world. They can enjoy their crops and expand wildly. In order to eliminate these pests, humans will use a lot of pesticides, and even use airplanes, which wastes people, money and energy, and may have little effect. What is even more frightening is that these pesticides may eventually harm human beings.
This sounds terrible. One disaster after another, seemingly alarmist, is actually a normal result of destroying the balance of nature's food chain. Therefore, we should protect the environment, species diversity and ecological balance, and ultimately we are protecting ourselves.