Top-Rated Free Essay

Evolution

Good Essays
Darwin spent five years exploring the world. Darwin traveled to many places mainly in the Southern Hemisphere. As he traveled from place to place, Darwin was surprised, by the similarities between the species. He wrote in his journal of the Galapagos Islands, "...there is even a difference between the inhabitants of the different islands; yet all show a marked relationship with those of America, though separated from that continent by an open space of ocean, between 500 and 600 miles in width." At this early stage of his life, along with graduating college Darwin soon began collecting evidence for his theory of Evolution and natural selection. While on his journey Darwin made many observations. They were mainly about the different species he saw on the Galapagos Islands. Each island had a different variation of birds. He noticed that the beak sizes of the finches were different on each island because of the size seeds they ate. Darwin noticed that organisms reproduce more offspring than can survive. Each individual offspring has unique characteristics that can be hereditable. Most of Darwin’s observations focused on the idea of natural adaptions. Darwin noticed that the body parts an animal used the most for survival, evolved over periods of time. Meaning if a giraffe tends to use its neck a lot, it will extend in length throughout time. This is an organism’s natural adaption to, living within its environment. These observations lead to the theory of Evolution. Aside from this Darwin observed the competitive field among organisms. An organism’s physical adaption can either make or break them. Survival of the fittest is key in every habitat. Through evolution, organisms have been allowed to make physical and behavioral adaptions that can be beneficial towards survival.

In his theory Darwin states that organisms have visible differences. This difference can be inherited from the offspring’s parents. Another point is that organism’s produce more offspring than can survive. From these organisms that are produced, many do not reproduce later on in life. Since so many organisms are reproduced there is a fight for the survival of the fittest. Individuals best suited to their environment survive and reproduce most successfully. The characteristics that make them best suited to their environment are passed on to offspring. Individuals whose characteristics are not as well suited to their environment die or leave fewer offspring. Organisms change over time, this is the theory that Darwin tries to prove known as evolution. It is believed that organism adapt t their environment and change over periods of time. The species that live in present day are descendants form those in the past. All organisms on Earth are united by one common ancestor. These are the major points form Darwin’s theory of Evolution. I feel that Darwin’s theory is very accurate. Organisms adapt over time and this adaptions help with natural survival. Evolution occurs over periods of time and has leaded us to our modern state. Every organism is the descendant of a prehistoric ancestor. There are visible similarities, but sometimes it may be hard to tell an organisms’ ancestor. I feel that if changes occur gradually it can be easily noticed that organism’s physical, behavioral and outer appearances change.

You May Also Find These Documents Helpful

  • Good Essays

    Evolution

    • 2855 Words
    • 12 Pages

    10I-0207 SECTION: ‘C’ PRESENTATION: ENGLISH The Evolution of the Human | The universe is constructed from a multitude of various materials. It is dynamic in form and shape due to a multitude of various processes and interactions between these materials. To the human, however, in his need to establish his place and purpose in the universe, the most important material is biological and the most important process is evolution, far it is only here that the human can learn to understand himself…

    • 2855 Words
    • 12 Pages
    Good Essays
  • Powerful Essays

    The Evolution

    • 3505 Words
    • 15 Pages

    The Origin and Evolution of Life on Earth Why do we start the discussion of biology with a discussion of geology? Here are some reasons why one would do this: * All life on earth is linked to geology; likewise, many surface geologic features and processes have been influenced by life on earth. The origin and early evolution of the earth are especially important when looking at the origin and early evolution of life on earth. * Life chemistry had its origin with the elements available to…

    • 3505 Words
    • 15 Pages
    Powerful Essays
  • Good Essays

    Evolution

    • 916 Words
    • 4 Pages

    Theory of Evolution One of the greatest questions of all time is: "Where did we all come from?" One of the most popular answers to this question is creationism, the idea that everything was created by a higher being. Another popular idea is evolution, the idea that all living organisms descended from a less complex organism. Evolution possesses a new way of thinking that is being greatly accepted by the scientific community, but not by pious groups of people. Creation and evolution are diametrically…

    • 916 Words
    • 4 Pages
    Good Essays
  • Good Essays

    Evolution

    • 1016 Words
    • 5 Pages

    Journal 2 I have always been interested in evolution, probably due to my innate inability to accept what people say on “face value”. I believe (as I have taught my children) to question anything and everything which would explain my passion and interest in the evolution of psychology. Evolutionary psychologists use various methods to study how evolution affects psychology. Deductive and comparative methods are the two most commonly used methods because they allow psychologists to study something…

    • 1016 Words
    • 5 Pages
    Good Essays
  • Better Essays

    evolution

    • 651 Words
    • 3 Pages

    Evolution of Polar Bears The observed fossil transitions that inform our knowledge of Polar Bear speciation are very well documented. Bear fossils change through time: generally, when examining the fossil record, successively deeper levels of sediments or sedimentary rocks yield successively older fossils. For some transitions from one species to another, one can find a well-characterized series of transitional specimens leading the observer across the species "boundaries" (Kurten, 1976). Sometime…

    • 651 Words
    • 3 Pages
    Better Essays
  • Good Essays

    Evolution

    • 295 Words
    • 2 Pages

    The theory of evolution, formalized by Charles Darwin, is as much theory as is the theory of gravity, or the theory of relativity. Unlike theories of physics, biological theories, and especially evolution, have been argued long and hard in socio-political arenas. Even today, evolution is not often taught in primary schools. However, evolution is the binding force of all biological research. It is the unifying theme. In paleontology, evolution gives workers a powerful way to organize the remains of…

    • 295 Words
    • 2 Pages
    Good Essays
  • Powerful Essays

    EVOLUTION

    • 4102 Words
    • 17 Pages

    This article is about evolution in biology. For other uses, see Evolution (disambiguation). Page semi-protected For a generally accessible and less technical introduction to the topic, see Introduction to evolution. Part of a series on Evolutionary biology Diagrammatic representation of the divergence of modern taxonomic groups from their common ancestor. Key topics[show] Processes and outcomes[show] Natural history[show] History of evolutionary theory[show] Fields and applications[show]…

    • 4102 Words
    • 17 Pages
    Powerful Essays
  • Good Essays

    Evolution

    • 632 Words
    • 3 Pages

    Evolution in biology is a genetic change in a line of descent over time. The evolution of life on Earth has resulted in many hundreds of thousands of species. Genetic evidence reveals that humans share a common ancestor with life forms as different from us as bacteria and corn plants. In early 1800s, the source of Earth’s remarkable diversity of life forms was hotly disputed. Many people believed that all species had come into existence at the same time in the distant past. In 1831 Charles Darwin…

    • 632 Words
    • 3 Pages
    Good Essays
  • Satisfactory Essays

    Evolution

    • 524 Words
    • 3 Pages

    USA whether or not Evolution should be taught in public school classrooms due to the controversy over evolution and creationism. In the early 2000’s a parent in Dover Pennsylvania went to the district school board with complaints that his child was being taught lessons in science that contradicted his religious beliefs; the subject being evolution. Joshua Rowand was taught by his family and church that the world was created through creationism and felt that the theory of Evolution did not support his…

    • 524 Words
    • 3 Pages
    Satisfactory Essays
  • Good Essays

    Evolution

    • 1687 Words
    • 7 Pages

    Gaston Havandjian Proffesor Hubbell English Comp I Essay Two 10/09/12 Evolution Did you know that in this exact moment people are being born without wisdom teeth? Probably after reading this you are thinking about how great will it be for these lucky ones not experiencing the pain you had to go through when those wise bones were growing out or the anxiety you felt the day the surgeon removed them for good. You also might be asking yourself a question: Why this is happening? The answer can…

    • 1687 Words
    • 7 Pages
    Good Essays