We may assume the diversity is the reason why we need to protect the environment and save many endangered lives. However, how can we know that they are important to us and why diversity is important to the earth. For example, we protect the panda from disappearing in the world. It is the truth that the gene of these endangered lives matters in the future. It is easily found that these genes are not fit for the environment nowadays. We are not sure if that is useful so we do not have a really strong reason to protect the environment.