Some people believe that the process of preventing the extinction of an animal species is unnatural and other believe that we need to try to prevent some species from extinction. While both sides have valid points, I believe that some species need to be preserved by humans, to preserve specific environment.
One reason why some people believe that we should not try to to prevent that animal species become extinct is because the nature have is own life cicle and humana should not be intrude in it. They argue that if some species are near to become extincts, the nature probably consider their life cicle concluded. For example, for the scientist Charles Darwin the animal species that cannot evolve and adapt during the years to front off the danger of the new world, should become extinct to leave a spot for species that are more evolved and adapted to live in that world. This shows that some animal species are forced by the nature to face off extinction and humans should not do anithing.
An opposing perspective is that some animals need to be protected to prevent thier extinction, which is based on the idea that some environment need that animals to lived.
They point out that some species provide to maintain their ecosystem balanced and safe. A clear example of this is the bee, the majority of the scientists believe that the bee are necessarily for our environment and some species of bee are close to extinction, so we need to prevent the bee exctintion to preserve our ecosystem. This indicates that some species need to be preserved to avoid their disappearing from Earth.
In conclusion, although the animal extinct is natural and follow natural life cicle, I believe that we need to prevent extinction of some animal species, because some animals are the key of a healthy and balanced ecosystem.