In nature, human beings and nonhuman animals are the significant components of ecosystem which has evolved for millions of years. As time went by, both humans and animals developed their skills and formed their communities. The similar process indicates that all beings are experiencing subjects of life, and they are capable of suffering and have the consciousness of what they do, feel, and want. On this basis, some might argue that both humans and animals are worthy of moral consideration. It is also controversial to determine whether humans and animals enjoy equal moral rights. However, one of the most essential differences between humans and animals is humans’ advanced communication ability. We, human beings, use our communication skills to establish interpersonal relations and then form sophisticated societies with rules and laws to restrict our behaviors, and the ability to distinguish right from wrong makes us avoid mistakes which are immoral. Therefore, I firmly believe that human beings have a greater moral consideration over nonhuman animals.