Your Inner Fish Chapter Summary

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Your Inner Fish by Neil Shubin evoked many thoughts about evolution and humanity. My favorite chapter from the book was Chapter 11: The Meaning of It All. This chapter tied everything that Shubin had taught and explained to the reader about differences and the overwhelming similarities between different species of organisms. He went on to explain that many of the diseases or problems that appear in the human species are caused by our evolutionary history and would explain where these occurrences came from. An example of this is the phenomenon of hiccups that come from our relation to tadpoles. Tadpoles use this mechanism to breath without getting water in their lungs, but in mammals, this creates the annoyance of having the hiccups. Another …show more content…

I learned a lot about how all living things are related to each other and could see the connections. Shubin did a great job at explaining these relationships and similarities between organisms. It helped me understand how complex and completely random evolution is, while putting it into terms that make it simpler. The breaking down of many different traits that come from our evolutionary past and then putting it all together in the final chapter was what really drove home the process and advantages or disadvantages of evolution. I also found it particularly helpful due to all of the examples that were made throughout this book that I can vividly remember that I hope will be helpful on the AP Exam come …show more content…

He has solid evidence to support his claims, such as the common body plans, the development between humans and fish are strikingly similar, and the similarities in bodily functions. The “law of everything,” in which all living things have parents, is strong evidence for his claim. He goes on to explain – at least in human terms – that even though he has the genetic information from both of his parents, he is not a copy, as they are not copies of their parents, and so on. This makes the point that modification is in every generation of every family, therefore this modification is present in the evolution of species as well, which over the course of millions of years, these species can evolve from a fish, into many different species, and can end up with a human. The sheer fact that organisms have the same body plans, shows that there is nothing random about what organs or structures the body will have and that there must be some relation between all creatures, otherwise all species would have immense differences and would very rarely, if ever have any similarities across species

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