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The Evolution Site<br><br>The concept of natural selection as the underlying principle of evolution is the central force in modern biology. It connects disciplines that are as diverse as genetics microbiology and palaeontology.<br><br>The study of evolution may be controversial, and the misinformation that results can lead to confusion over its fundamentals. This site explains the fundamental concepts.<br><br>What is Evolution?<br><br>Modern evolutionary theory is based on the gradual and cumulative changes that occur in populations over time. These changes are caused by natural selection, which increases the number of organisms who have beneficial traits that enable them to live and reproduce in a specific environment. This means that these organisms leave more offspring than those that don't have these beneficial traits. This can lead to a genetic mutation that may eventually result in new species.<br><br>The term "evolution" is often ascribed to the notion of "survival of the strongest," which implies that people who are most well-adapted to a particular environment will be more successful than those who aren't adapted to the environment. In actuality this is just one of the many different ways that evolution can occur.<br><br>Another common way the term "evolution" is used to suggest that a species will invariably change from one state to the next state of being. This theory of evolution is called anagenetic or cladogenesis. The definition of evolution in science is not in agreement with this view. Instead, the theory of evolution that is scientifically based focuses on changes that take place within populations over time, and these changes are the result of mutations that produce genomic variation and natural selection.<br><br>Charles Darwin was one of the scientists who supported this theory. Alfred Russel Wallace who developed the macroevolution theory believed that this was the only way that higher living forms could have evolved.<br><br>To be able to be referred to as 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. In reality, evolution is accepted as one of the cornerstones of science today, and is backed by the vast majority of scientists around the world. However, there are many misconceptions about the nature of the theory of evolution, and particularly how it relates to religion.<br><br>What is the Theory of Evolution (Evolutionary Theory)?<br><br>Evolution is a scientific explanation of how living things change with time. It is based on a few known facts: that more offspring are produced than can survive and that different individuals have their physical traits and they can transmit traits to the next generation. These observations are backed by the increasing amount of evidence from molecular biology, palaeontology climatology, functional morphology and geology.<br><br>The theory of evolution through natural selection was conceived independently by Charles Darwin and Alfred Russel Wallace in the late 19th century to explain why organisms are adapted to their biological and physical environment. It is now the best-supported and most widely tested theory in the field of science. Its predictions were proven by the evidence, for example that more complex organisms are less susceptible to genetic mutations. The more successful an organism is in terms of its longevity and reproducing the more likely it is to pass its genes on to the next generation.<br><br>Some people are against evolution because they believe it implies there is no purpose for life. However, a lot of scientists who are also religious believers, such as the prominent Cambridge Palaeontologist Simon Conway Morris, believe that evolution is not just compatible with faith in God but is enhanced by it (BioLogos 2014).<br><br>Many highly qualified evolutionary biologists have been involved in the development and testing the theory of evolution, including several revered evangelical Christian leaders. Many of these scientists contributed to the understanding a vast array of phenomena, such as genomics and phylogenetics and also the formation and function of fossils.<br><br>The term "theory" is sometimes used to refer to a speculation or guess but in reality it is a scientific hypothesis that has been rigorously developed and tested over time. Scientists test hypotheses through repeating the experiments or observations that led them to them. So the theory of evolution theory has been repeatedly confirmed, as well as the related theories of Copernican theory, atomic theory, and germ theory.<br><br>What is the Process of Evolution?<br><br>The process of evolution is a gradual shift in the genetically different individuals within a particular species over time. This is the result of natural selection, which favors individuals who are more adapted to their environment. The better-adapted individuals have a better chance of survival and reproduction. As more people live and reproduce, their genes are more widely distributed within the population. This process is sometimes called "survival for the fittest."<br><br>According to the theory of evolution the mutations that cause genomic variation are the raw material of evolutionary change. These mutations may occur randomly or under the influence of the environment. When mutations are random, the resulting allele frequencies may vary from generation to generation. When a mutation is beneficial it will increase the frequency of alleles which causes the allele to spread throughout the population.<br><br>The changes in frequency of alleles can result in new species over time. The new species may continue to evolve and become newer forms. This is a process called macroevolution. The formation of an entirely new species is typically caused by changes in the environment that allow certain kinds of resources to become available or cause new environmental problems. For instance, the rise of finches in the Galapagos Islands is a result of the availability of different food sources and the need to protect themselves from predators.<br><br>In a wider sense, evolution can be defined as any change in the characteristics of living organisms over time. This change can be subtle, like the development of new colors or dramatic, like the formation of an organ.<br><br>Scientists who believe in the theory of evolution generally agree that genetic changes are important in creating evolution. They also agree that the process of evolution occurs over a long period of time, often millions of years. They differ on the importance of different factors that could speed up or slow down the process. 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Additional evidence can be found in the similarities between living organisms, embryology, biogeography, genetics and comparative anatomy.<br><br>The most important proof of evolution is found in the evolutionary tree, which shows how different species are related. Homologous structures are another source of evidence. They have a similar structure but perform different functions in different species, like the wings of a bird or bat. Evolution is evident in the way that different species adapt and grow to similar environments. For instance,  [https://www.bioguiden.se/redirect.aspx?url=https://alexander-lodberg.mdwrite.net/is-evolution-baccarat-site-the-most-effective-thing-that-ever-was-1735621783 에볼루션 게이밍] arctic foxes and ptarmigans grow seasonal white pelts that blend into snow and ice. This is a kind of convergent evolutionary process, which suggests that the species share ancestral ancestors.<br><br>The vestiges of structures are another source of evidence. They are the remains of an organism which may have served some purpose in the past. For instance the human appendix is an oblique reminder of an organ used to digest food. Natural selection is a process that causes these structures to shrink as they are no longer used.<br><br>Scientists have also collected evidence for evolution by observing and testing. The evidence for evolution can be divided into six distinct categories: directly observed changes at small scales biogeographic distributions, comparative anatomy fossil records, genetics. Each of these categories provides convincing evidence for the evolution of life.<br><br>While many people are misinformed about the theory of evolution, it is a scientific fact. It is not a theory, but rather a powerful collection that is based on decades of observation. Scientists continue to collect and study new information to better understand the history of Earth's existence regardless of whether or not people believe in the theory of evolution or not. This information will help scientists to better understand how we can avoid future global catastrophes, and how to best utilize the resources of our planet. This information will also help us better serve the needs and wants of the people who live on this planet.