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Firstly, I want to say that last week's discussion is really appealing to me. What we have discussed during the lesson about Darwin's theory of evolution: descent with modification finally relates what I have learnt at high school. I am more interested in the concrete and factual discussion than the mind-boggling and abstract discussion of the truth and stories.

I did not say that I totally believe in modern scientific theories of evolution. I have to admit that these theories are not totally accurate and there are still controversies pertaining to Darwin's theory of evolution. However, science is always changing and controversies are the driving force of scientific development since the discussion among scientists would contribute to the perfectness of the scientific theories.

Actually, I think every living organism on earth is developed from a common ancestor is a very good idea in terms of educating Human Beings not to be so arrogant. Can you believe that we actually share a common ancestor with bacteria? We are actually not superior to any organism on earth. Hence we need to respect them. If we could realize this fact, then there will be less occasions of animal maltreatment and deforestation existed on earth.