Humans and fish are not closely related in terms of outward appearance. Most people don't see how we can share the same characteristics with fish, but scientists know that these two species share homologous characteristics. Homologous is being in similar structures, and having similar genes indicates that the species came from a common ancestor, but does not indicate that these characteristics will function in exactly the same way. Humans and fish are related in the chordate lineage because humans share homologous characteristics with fish. Homologous features shared by humans and fish illuminate the evolutionary path from the first vertebrates sharing similar hand and fin structures, the development of teeth that branched out into features that appeared on the skin, and all the way to instructions who made us what we are. are. The similarity in bone structures and genetic instruction is a modification we have from the original fish bone and gene. The similarity of human hand bones and fish fin bones is the homologous structure. The hands we use to help us grip, grasp, and grasp things are important to us as humans. Without these hands, we would not be able to use tools or hold pencils. Shubin pointed out that the hands of corpses are the signature that we are who we are because our hands speak of many tasks that we are capable of performing, such as building, maintaining and creating our reality (Shubin, p.29) . The structures of the hands are thought of by anatomists such as Sir Charles Bell and Sir Richard Owen because their conception was profound. Bell thought it was the perfect conception that only God could create such a thing. Owen began to notice a trend because he had a wider range of experiences with creatures ranging from the medium of paper to the simple ancient form that had already existed for millions of years of development. Humans have characteristics that have been modified and reorganized in newer ways, which makes us unique. This is not to say that we are the only unique living things, fish have their own modification derived from the ancestor of chordates. We are living beings who cannot make our own food. Giant multicellular organisms have been upgraded through our bodies through the evolutionary process so that we can survive and reproduce on this planet. We are built to adapt to the environment in which we live. We are not perfect at adapting to our environment, but more like what is good enough for the moment, in other words simply the working process of evolution. Works Cited Shubin, Neil. YOUR INNER FISH: A JOURNEY THROUGH 3.5 BILLION YEARS OF HUMAN HISTORY. New York: Pantheon Books, 2008. Print.