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 First of all, I have the same question as many other students have... What do we define human nature? From the article, it seems "human nature" is the nature to eat meat. Of course, our human nature is not only to eat meat. It also includes sleeping when tired, laughing when happy and all the other instincts that we are so used to them that we even fail to notice them. However, if human nature is only about eating meat, I think we simply don't have to. Of course, there are vegetarians who do not consider eating meat as their human nature. But for the rest of us who do not feel that eating meat tortures our consciousness or ethics, we can just go and eat meat. Many people are worried that we have to abandon our "human nature" as eating meat because the world is gonna have difficulty producing enough meat to feed the world population. But we have something magical called technology. With the technological development, I think we can keep up our habit of eating meat. To think it in another way, if all of us become vegetarians, where can we find enough lands to plant all these vegetables because planting vegetables requires much more land than feeding animals? At that time, I think the problem will be much more serious. So far, I think being omnivores is the best way for us to survive with the world's population growing incredibly fast.