Having entered the 21st century, the world is witnessing breath-taking changes. The development of science and technology is always beyond people's wildest mind and study on animals is a good case in point. Never has the issue concerning whether by observing and performing research on animals contributes to better awareness of human beings failing to attract our attention. From my perspective, we can undoubtedly have a more thorough understanding of our own, but we should not disturb the balance of the nature.

To begin with, numerous observations and researches have been conducted and the astonishing outcomes make people believe that we can not be separated with animals. After years of observing gorillas’' living patterns in forests, scientists have assured that the principles and relationships of them surprisingly resemble the way human beings do. By comparing genes of gorillas and human beings, we are once again shocked by the similarity of the result. All these has confirmed the view that we, human beings, evolved from apes. Besides, some zoologists have discovered that human beings own the so-called sixth-sense just as what animals behave when they predict subsequent events. Sharks can hunt for preys by the sensor in front of their nose. Dogs and cats can feel the coming natural disaster such as earthquake or typhoon. Thus, by observing and doing research on animals, human beings can finally find the answer how we were chosen to be the dominant species and what relates us to other creatures.

However, it goes without saying that some experiments are crucial and unfair to the subjects. Can we draw the conclusion that human beings are created to destroy other species? Is it justified to state that some animals are born to be performed research on even to death? Have we already forgotten that all lives are created equally? If the answers to these questions are uncertain, why should we conduct those experiments on them per day without feeling guilty? If harmony is defined in this way, it is high time for us to ponder whether it is true harmony? If human beings can only know more about themselves by scarifying other lives, let it be! If right could not be protected as it would, we should preserve it as we can. Gone is the wind that we can develop our civilization by ending other lives and live and let live should be the eternal motto.

From the discussion above, admittedly, we can assert that studies about animals help us to realize the way human beings evolve. Nevertheless, taking more factors into account, it is on exaggeration to say that these researches harm the bond between human and other creatures to some extent.