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The Evolution Site The theory of evolution by natural selection is the defining force of modern biology. It ties together disciplines such as genetics, microbiology, and the study of palaeontology. However, the study of evolution is often controversial, and the misinformation that results can confuse people regarding its fundamentals. This site explains the fundamental concepts. What is Evolution? Modern evolutionary theory is based on the gradual and cumulative changes that happen in populations over time. These changes are caused by natural selection, a process that increases the amount of organisms that possess beneficial traits that allow them to survive and reproduce in a specific environment. The organisms that have these traits produce more offspring because of the beneficial characteristics. This results in a genetic change that can eventually lead to the development of new species. The term “evolution” is often ascribed to the notion of “survival of the fittest,” which implies that those people who are the most adapted to a particular environment will have an advantage over those who aren't adapted to the environment. This is just one of many ways that evolution could happen. Another way to use the word evolution is to suggest that species are able to move from one stage to the next. This theory of evolution is called anagenetic or cladogenesis. The definition of evolution in science does not support this view. The evolutionary theory that scientists have developed change is based on changes that occur in populations over time. These changes are caused by mutations which result in natural selection and genetic variation. Charles Darwin was one of the scientists who backed this view. Alfred Russel Wallace who developed the macroevolution theory believed that this was only way the higher living forms could have evolved. For a concept to be called a theory, it has to be capable of surviving rigorous testing and evidence. The evidence for evolution has stood the test of time and has been backed by a myriad of studies across various scientific disciplines, from geology to biology to astronomy. In reality, evolution is accepted as one of the cornerstones of science today and is supported by the vast majority of scientists across the globe. However, there are many misconceptions about the nature of the theory of evolution, specifically how it relates to religion. What is the Theory of Evolution? Evolution is an explanation for the way living things change over time. It is based upon a few established facts: that more offspring are produced than can be surviving and that different individuals have their physical characteristics, and that they are able to pass on traits to future generations. These observations are supported by a growing amount of evidence drawn from molecular biology, palaeontology and climatology functional geology, morphology. Charles Darwin and Alfred Russel Wallace independently conceived the theory of evolution based on selection in the mid-19th Century as a reason why organisms adapt to their physical and biological environments. It is today the most supported and most extensively tested theory in the field of science. Its predictions were proved by the fact, for example that more complex organisms have less genetic mutations. The more successful an organism is in terms of survival and reproducing, the more likely it will pass its genes on to the next generation. Some people oppose evolution because they believe it implies that there is no purpose to life. However, a lot of scientists who are also religious believers such as the renowned Cambridge Palaeontologist Simon Conway Morris, believe that evolution is not only compatible with belief in God but is enhanced by it (BioLogos 2014). Many highly skilled evolutionary biologists have been involved in constructing and testing the theory of evolution, including several revered evangelical Christian leaders. Many of these scientists contributed to the understanding a wide range phenomena, including phylogenetics and genomics, and also the formation and function of fossils. The word “theory” which is often misinterpreted refers to scientific hypotheses that have been tested and refined over a period of time. Scientists test hypotheses through repeating the experiments or observations that led them to the conclusion. Therefore, the theory of evolution has been repeatedly borne out and so have the theories of Copernican, atomic and germ theory. What is the Process of Evolution? The process of evolution is a gradual change in the genetically different individuals within a species over time. This is the result of natural selection of individuals that are more well-adapted to their environment. The more adapted individuals have a greater chance of survival and reproduction. As more people live and reproduce their genes become more prevalent in the population. This is sometimes referred to as “survival for the strongest.” According to the theory of evolution, mutations that lead to genomic variation are what triggers evolutionary change. These mutations could occur at random or be influenced by the environment. When mutations are random, the resulting allele frequencies may differ from generation to generation. If a mutation is beneficial, it will increase the frequency of alleles and cause the allele to spread throughout the population. Over time, these changes in allele frequencies could result in the creation of new species. The new species may grow and evolve into newer forms. This is known as macroevolution. The creation of a new species is often caused by changes in the environment which allow certain kinds of resources to become available or cause new environmental challenges. For example, the evolution of finches on the Galapagos Islands is a result of the abundance of food sources and the need defend themselves from predators. In a larger sense, evolution can be defined as any change in the nature of living organisms over time. The change could be subtle, like the development of a new color or a dramatic change, such as the development of an organ. Scientists who believe in evolution theory generally agree that genetic change is essential in the process of generating evolution. They also agree that the process of evolution takes place over a lengthy period of time, typically millions of years. They differ on the importance of different factors that could speed up or slow down this process. For instance the role played by sexual selection, environmental pressures and mutation bias. Despite 에볼루션 카지노 사이트 , most scientists believe that evolution has happened and that the evidence for this is overwhelming. What is the Evidence of Evolution? Since Darwin's time, scientists have gathered evidence to support his theory of evolution. A portion of this evidence comes from fossils, which reveal the changing traits of organisms through time. Similarities between living organisms as well as embryology, biogeography and genetics are evidence. The evolutionary tree is the most effective method of proving evolution. It shows how species are related. Homologous structures are another source of evidence. They share a similar structure but perform different functions in different species, such as the wing of a bat or bird. Evolution is also evident in the fact that different species adapt and grow to similar environments. For instance, arctic foxes and Ptarmigans wear white fur coats which blend with snow and ice. This is a type of convergent evolutionary process which suggests that the species share ancestors. Another evidence point is the existence of vestige structures, which are unusable organs which could serve a purpose in the distant ancestor. For instance, the human appendix is an oblique reminder of an organ that was used to digest food. These structures tend to shrink in size when they're no longer in use which is a process referred to as natural selection. Scientists have also gathered evidence of evolution through observation and testing. Evidence for evolution is divided into six categories: directly visible small-scale changes, biogeographic patterns, comparative anatomy, the fossil record, classification and genetics. Each of these provides compelling evidence that the evolution of life took place. While many people are misinformed about the theory of evolution it is an empirical fact. It is not a speculative theory, but rather a powerful collection that is based on decades of observation. Whatever people believe or disbelieve about the theory of evolution, scientists continue to study and collect new data in order to further comprehend the evolution of life on Earth. This information will help scientists to better understand how to prevent future global catastrophes, and how best to make use of the resources available on our planet. This information will also allow us to better meet the needs and wants of the people living on this planet.