What Is Evolution Theory Essay

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“Evolution is the process by which different kinds of living organisms are thought to have developed and diversified from earlier forms during the history of the earth”. Evolution occurs within species and not individuals. Some people believe that evolution theory is a myth and it lacks scientific evidence and others believe that there is supporting evidence. Evolution in the living organisms is believed to have been continuing for the past three thousand million years.
Evolution theory is not a modern discovery as it appeared in early writings. Many scientists knew about the theory before Charles Darwin, but they did not have any evidence to support the theory. Some scientists in the sixth century thought evolution was occurring because …show more content…

Darwin’s theory was inspired by his voyage around the world in 1831. During his voyage, Darwin observed incredible diversity of species. One example is the finches of the Galapagos Island. The finches of the Galapagos are a group of closely related bird species, which helped Darwin discover the evolution of natural selection. He even collected the preserved remains of many ancient organisms, which are called fossils. Some of those fossils resembled organisms that are alive today. Darwin’s evolution theory was first published in his book On Origin of Species in mid- nineteenth century. Evolution theory of natural selection has been observed in many different species by Charles …show more content…

Microevolution is when the change occurs within a group, but the descendant is the same type as the ancestor”. For example, different types of cats, dogs, and trees. “Macroevolution refers to major transformation over time, the origin of new types of organisms from previously existing, but different, ancestral types”. Some of the examples are fish evolving into amphibians, amphibians evolving into reptiles, and reptiles evolving into mammals and birds. Evolutionists believe that the small micro-evolutionary changes lead to large macro-evolutionary changes. The theory is also explained and supported by Microevolution and

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