Dominoes that collapse

Connected like a net, connected like a domino.No species can live alone. People are no exception. Other species, and the surrounding environment. When each species is in harmony and balance, the ecosystem goes naturally. However, various factors such as natural development, habitat reduction, overfishing, environmental pollution, invasion of alien species, and climate change are intertwined and threaten ecosystems. Of course, it is a natural phenomenon that some species disappear and some new species emerge. However, today the extinction rate of species is too fast. It is about 1000 times different from the natural state which is not in contact with the human hand. If left unattended, it will cause ecological downfall someday. It is like a falling domino, it can not get out of hand and can not be reversed.