A little late, according to ecologists, mankind set itself the task of preserving biological diversity in nature. As a result of cataclysms and illiterate human activities, many species of plants and animals disappeared from the face of the Earth. Possible question: “So what? There are still so many other species left!"
Biological diversity on the planet is the presence on it of a large number of species of all kingdoms: animals, plants, mushrooms. The task of preserving them is one of the main ones in ecology. The planet Earth is really rich, therefore, a person is obliged to take care of this wealth at least in order for it to go to the next generations of people. So that grandchildren and great-grandchildren can see wonderful animals, beautiful corners of nature, they can use medicinal plants. Any plant, animal (even the smallest) is part of the biogeocenosis, and in general, is included in the entire ecosystem of the Earth. The body participates in the cycle of substances, being a link in the food chain. Producer plants synthesize nutrients using solar energy. Consumes consume energy accumulated by plants and other animals, deritophages "utilize" carrion, decomposers finally decompose nutrient residues. Thus, each organism occupies a specific place in nature and performs a specific role. The disappearance of one link can cause the disappearance of several more, changing the entire chain. There will be not only a depletion of the food chain, but also an imbalance of species in the ecosystem. Some species can increase disproportionately in numbers and cause ecological disaster. For example, the unprecedented multiplication of locusts can deprive entire areas of crops. By preserving the richness of species on the planet, we, thus, maintain the stability of ecosystems, ensure the safety of life of all species, including human life. In addition, scientists want to preserve the genetic information of each species, with the expectation of future technologies that will allow to recreate the animal world of the past, for example, in isolated recreations (parks), to recreate extinct and extinct species of animals and plants.