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The Evolution Site The concept of natural selection as the basis of evolution is the central force in the current biology. It ties together disciplines such as genetics, microbiology and palaeontology. However the study of evolution is often controversial, and the resulting misinformation can confuse people about its fundamentals. This site can help explain the most important concepts. What is Evolution? Modern evolutionary theory focuses on the gradual and cumulative changes that take place in populations over time. These changes are a result of natural selection, a process that increases the number of organisms that possess beneficial traits that allow them to survive and reproduce in a particular environment. The organisms that have these traits produce more offspring because of the positive characteristics. This could result in a genetic mutation that may eventually result in new species. The term “evolution” is usually associated with “survival-of-the fittest” which implies that individuals who are more adjusted to certain conditions will have a distinct advantage over those less well-adapted. This is only one of the many ways in which evolution can happen. Another way to use the word evolution is to suggest that a species will progress from one state to the next. This view of evolution can be referred to as anagenetic or cladogenesis. This theory is not supported by the definition of evolution that is scientifically accepted. The theory of evolution that is based on science changes focuses on the changes that occur in populations over time. These changes are the result of mutations that result from natural selection and genetic variation. Some scientists, including the great Charles Darwin, advocated this view of evolution. Others, notably Alfred Russel Wallace, who created the macroevolution theory, believed that this was the only way the higher forms of life could be derived from lower forms. In order for a concept to be called a theory, it must be capable of surviving rigorous tests and evidence. Evolution has stood the test of time, and has been supported in many scientific disciplines, from geology to biology chemistry to astronomy. Evolution is a fundamental concept in science and is supported by a majority of scientists across the world. Many people are confused about the nature of evolution theory and how it connects to religion. What is the Theory of Evolution? Evolution is a scientific explanation of the way living things change over time. It is based upon a few known facts: that more offspring are created than can survive and that different individuals have their physical characteristics, and that they are able to pass on traits to the next generation. These observations are supported by the increasing amount of evidence from molecular biology, palaeontology, functional morphology, climatology, and geology. 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 are adapted their physical and biologic environments. It is currently the most well-supported and most widely tested theory in the field of science. Its predictions were proved by the fact that, for instance, more complex organisms have less genetic mutations. The more successful an organism is in terms of surviving and reproducing the more likely it will pass its genes on to future generations. Some people are against evolution because they believe it implies that there is no purpose to life. However, many scientists who are also religious like the famous Cambridge palaeontologist Simon Conway Morris, believe that evolution isn't just compatible with belief in God but is enhanced by it (BioLogos 2014). Many highly skilled evolutionary biologists have been involved in the development and testing the theory of evolution, including several highly respected evangelical Christian leaders. Many of them have contributed to the understanding of a vast variety of phenomena including phylogenetics and genomics and the formation and role of fossils. The word “theory” that is often used incorrectly is a reference to a scientific hypotheses that have been tested and refined over time. Scientists test their theories by repeating the experiments or observations that have led to them. So the theory of evolutionary theory has been repeatedly proven, as have the corresponding theories of Copernican theory as well as atomic theory and germ theory. What is the Process of Evolution? The process of evolution is the gradual change over time in the ratio of genetically distinct individuals within a certain species. This change is a result of natural selection, which favors individuals who are better adapted for their environment. The individuals who are more adaptable have a greater chance of survival and reproduction. As more individuals survive and reproduce, their genes become more prevalent within the population. This is sometimes referred to as “survival for the strongest.” According to the theory of evolution the mutations that cause genomic variation are what triggers evolutionary change. These mutations could occur at random or be influenced by the environment. When mutations are random the frequency of the resultant alleles could differ from generation to generation. When a mutation is beneficial it will increase the frequency of alleles which causes the allele to be spread across the population. Changes in the frequency of alleles can lead to new species as time passes. 에볼루션 게이밍 will then develop and evolve into new forms. This is known as macroevolution. The creation of new species is often a result of changes in the environment, that make certain resources accessible or creates new environmental challenges. The evolution of finches in the Galapagos Islands, for example is due to the availability of new food and the need to defend themselves against predators. In a wider sense, evolution can be defined as any change in the characteristics of living organisms over time. The change could be minor, such as the development of a new coloration or massive, for instance, the creation of a new organ. Scientists who believe in the theory of evolution generally believe that genetic change is essential in the process of generating evolution. They also acknowledge that the process of evolution takes place over a long period of time, typically millions of years. However, they differ on the importance of different factors in accelerating or retarding the process, including the impact of environmental pressures, sexual selection and mutation bias. Despite these differences most scientists are still convinced that evolution is real and that the evidence to support this is overwhelming. What is the Evidence of Evolution? Throughout the years since Darwin's time, scientists have collected evidence that supports his theory of evolution. Some of this evidence is derived from fossils which reveal the changing traits of organisms through time. Similarities between living and non-living organisms as well as embryology, biogeography, and genetics are further evidence. The evolutionary tree is the most effective method to prove the existence of evolution. It shows how species are closely related. Another way to prove it is homologous structures, which share a similar structures in different species but serve different purposes such as the wings of bats and birds. Evolution is evident in that various species adapt and evolve to similar environments. For example, arctic foxes and ptarmigans develop white fur coats that blend into snow and ice. This is a type of convergent evolutionary, which suggests that the species had common ancestral ancestors. Another piece of evidence is the existence of vestigial structures. These are unutilized organs that may serve a purpose in the distant ancestors. The human appendix, for instance, is a vestige from an organ that was used to digest food. Natural selection causes these structures to shrink as they cease to be used. Scientists have also collected evidence for evolution by observing and testing. The evidence for evolution can be divided into six different categories: directly observed changes at a smaller scale, biogeographic distributions, comparative anatomy fossil records and genetics. Each of these provides convincing evidence that the evolution of life took place. Many people have misconceptions regarding the theory of evolution. But, it's an actual fact. It is not a theory, but rather a powerful collection built on years of observation. No matter what people believe or don't believe about the theory of evolution scientists continue to research and gather new information in order to further understand the history of life on Earth. This knowledge will allow scientists to better understand how to prevent future catastrophes on the planet, and how to use the resources on our planet. This will allow us to better serve the needs of people on this planet.