Essay on The Controversial Theory Of Evolution

Essay on The Controversial Theory Of Evolution

Length: 841 words (2.4 double-spaced pages)

Rating: Better Essays

Open Document

Essay Preview

The controversial theory of evolution is not a new theory, it was not even new to the British naturalist, Charles Darwin, as it had already been studied by ancient Greek philosophers during antiquity.  However, there is one important distinction made by Darwin and the philosophers of antiquity and that is the theory of natural selection, the most plausible method by which evolution takes place.  Other methods do exist, sexual selection, mutation, genetic drift and gene flow, however these mechanisms are rarer.  Current evolution theories vary from Darwin’s in that we are now aware of DNA and its principal role in the heritable adaptation of species.  Darwin believed natural selection of inherited variations increase an organism’s ability to survive and reproduce, creating a state for survival of the fittest.  A species can reproduce offspring that also can reproduce.  Recently it was discovered that the giraffe that is commonly referred to as a species is actually four species. 
Over time organisms change due to natural selection and genetic drift producing an adaptation within the preexisting species or a new species all together.  The logic behind this theory is that those with genes helpful for survival are more likely to produce offspring and pass those traits on, slowly resulting in a population with more of the helpful genes; however, genetic drift can cause random impact on the frequency of alleles within a population. Mutation is another factor by which change in a species may occur. It takes place when the cell copies its DNA before dividing sometimes swapping a base for another or adding or deleting a base. Although these mistakes are generally harmless they are still heritable and are passed down on to next generati...

... middle of paper ...

... layers contain vastly different organisms than we have today, while each layer closer to the surface contains more identifiable fossils.  Fossilized rock presents the complex changes that evolve over time.   Evidence I found most compelling for evolution was that, “humans still have a remnant of a gene required for producing the yolk found in a bird and reptile egg…this gene remnant was directly predicted by scientists who knew where it would be based on where it is in the chicken genome” (Biologos).  Evidence that appears to discredit evolution are unanswered questions about the human body for instance why we have an inactive gene to produce vitamin C when this presents no plausible benefit to the species. Evolution remains a theory and facts evidence shown to disprove it should always be examined, however currently there is great evidence in support of the theory.

Need Writing Help?

Get feedback on grammar, clarity, concision and logic instantly.

Check your paper »

Darwin 's Theory Of Evolution Essay

- Darwin. Just the mention of his name can peak a person’s interest and result in a controversial and personal opinion of Darwin’s theory concerning evolution. His theories came at a time when a majority of the world felt comforted by the belief that humanity came from a supernatural and faith-required beginning. Evolution has and undoubtedly will continue be a topic of controversy. The reason for that is because religion still has a huge element in the lives of people. Despite the claims of fallacy towards Darwin’s theory of evolution and the unwillingness of acceptance from the public that was exposed to his theories, Darwin nevertheless gave his theory a backbone and came out on top, as eve...   [tags: Evolution, Charles Darwin, Human evolution, Human]

Better Essays
1088 words (3.1 pages)

Essay about The Theory Of Evolution Of Science Curriculum

- The question of how long modern humans have been on Earth is a riddle that scientists have been trying to answer for centuries. One of the most popular theories to try and answer this question is the theory of evolution, which proposes that humans in their modern form (Homo sapiens) have only been around for about 100,000 years. Before then, there were no modern humans, only their predecessors, the Homo heidelbergensis, Homo antecessor, etc., descendants of the apes. This theory has become the basis of science curriculum throughout our public schools and in many states teachers are prohibited to present any material opposing evolution, thus giving students the impression that evolution is a...   [tags: Human, Human evolution, Natural selection]

Better Essays
1000 words (2.9 pages)

The Theory Of Evolution And Evolution Essay

- The theory of human evolution, contrary to creationism, which is the belief that “all present life-forms were spontaneously created at one point in time” is a scientific theory which proposes that the human species branched off from apes millions of years ago. In its simplest definition, evolution is the idea that changes within a species occur progressively over time, thus all lifeforms on the planet today have descended from earlier ones that existed long ago. The man responsible for popularizing the theory of evolution was English biologist Charles Darwin, who devoted his life to systematically finding evidence to support the concept....   [tags: Evolution, Charles Darwin, Natural selection]

Better Essays
1188 words (3.4 pages)

The Theory Of Evolution And Philosophy Of Science Essays

- In Chapter 28 of DeWitt’s book, Worldviews: An Introduction to the History and Philosophy of Science, DeWitt builds on his previous discussion of what the theory of evolution is and the historical developments that were discovered during that time, by introducing the implications that arise with the theory. The two main implications that are discussed in this chapter are implications due to religious beliefs and morality and ethics. However, these two particular implications are not the only ones that arise with the theory of evolution, in fact there are a lot of implications involved with this theory....   [tags: Evolution, Natural selection, Scientific method]

Better Essays
843 words (2.4 pages)

Essay on Charles Darwin's Theory of Evolution by Natural Selection

- More than a century after his death, and four generations after the publication of his chief work, "The Origin of Species", Charles Darwin may still be considered the most controversial scientist in the world. His name is synonymous with the debate that continues to swirl around the theory of evolution, a theory that deeply shook the Western view of humanity and its place in the world. We tend to speak simply of the theory of evolution, leaving off the explanatory phrase, "through natural selection." At most, perhaps, the general public has heard of "survival of the fittest" a poor phrase as far as I'm concerned, since fitness in everyday usage is associated wit...   [tags: Natural Selection, Evolution Essays]

Better Essays
1985 words (5.7 pages)

Charles Darwin's Theory of Evolution by Natural Selection Essay

- Charles Darwin's theory of evolution centres on the idea that species compete to survive, and favorable characteristics are passed on from one generation to the next. Darwin said that evolution took place by a process of natural selection or survival of the fittest. This meant that the animals and plants best suited to their surroundings survived and were able to pass on their genes to their offspring. The ones that weren't best suited died off and didn't get the chance to reproduce....   [tags: Natural Selection, Evolution Essays]

Better Essays
542 words (1.5 pages)

Essay on Charles Darwin 's Theory Evolution

- Just the words and observations of one man, Charles Darwin, practically changes how science is viewed by people today. It had led to controversial debates to figure out who is right or wrong. Many such as scientists, creationists and the so called Intelligent Designs has and still try to give their proof and reasoning of how this world and lives have their existence. There is no doubt that Charles Darwin was a well-educated man of his time. After his five-year voyage on the Beagle, he came to a conclusion that in theory evolution is a process by natural selection....   [tags: Evolution, Charles Darwin, Influenza]

Better Essays
823 words (2.4 pages)

Contradiction Between the Theory of Evolution and the Bible Essays

- Charles Darwin was a British scientist who founded the theory of evolution and changed the way we think about the natural world. Darwin was born on February 12, 1809 and lived during the Industrial Revolution. As a child, Darwin initially planned to become a doctor, but his plan terminated when he joined the five year expedition on the survey ship, the HMS Beagle, in 1831. In the expedition, Darwin developed a theory and published a book call The Origin of Species. This book was the beginning of what we know about evolution, and it was controversial....   [tags: Charles Darwin, Science, Religion, Evolution]

Better Essays
940 words (2.7 pages)

Charles Darwin 's Theory Of Evolution Essay

- Charles Darwin was born in the early nineteenth century to a wealthy family. Without the necessity of having to work to support himself, he had the available leisure time to ponder and hypothesize the large scientific questions of the world. The station in which he was born may have helped shape Darwin’s legacy in another way as well; it’s quite possible that his socioeconomic class had some bearing on the clout that his words and ideas held. The son of a free-thinking prominent doctor and the grandson of a philosopher, abolitionist, and physician who held some fairly radical ideas on evolution himself, definitely had an influence on Charles’ mindset....   [tags: Evolution, Charles Darwin, Natural selection]

Better Essays
1191 words (3.4 pages)

Essay on Charles Darwin 's Theory Of Evolution

- One of the most famous British naturalists and geologists, Charles Darwin developed and proved a theory that changed the world’s point of view. Darwin was most known for his theory of evolution. One of the main ideas of his theory was natural selection (“Charles Darwin”). He traveled the world studying different specimens and noticed their similarities and differences. He believed that all living things gradually evolved from common ancestors. He wrote many novels, such as On the Origin of Species by Natural Selection, which explained more about his theory and ideas on evolution (Coyne 23)....   [tags: Charles Darwin, Evolution, Natural selection]

Better Essays
1033 words (3 pages)