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The Evolution Site<br><br>The theory of evolution by natural selection is the unifying force of modern biology. It ties together disciplines that are as diverse as genetics microbiology and Palaeontology.<br><br>The study of evolution may be controversial and the misinformation that comes from it can lead to confusion over the fundamentals of evolution. This Web site helps clarify essential concepts.<br><br>What is Evolution?<br><br>The modern conception of evolution focuses on the gradual and cumulative changes that happen within populations over time. These changes are the result of natural selection. This is a process that increases the number of organisms that have beneficial traits, which allow them to thrive and reproduce in specific environments. This means that these organisms leave more offspring than those who don't have these beneficial characteristics. This can lead to a genetic mutation which could eventually result in new species.<br><br>The term "evolution", is often associated with "survival-of-the fittest" which means that those who are more adaptable to specific environmental conditions will have a distinct advantage over those less well adapted. In reality this is just one of the many different ways in which evolution can occur.<br><br>Another way to use the word evolution is to suggest that a species will progress from one state to the next. This type of view of evolution is referred to as anagenetic or cladogenesis. This view is not supported by the scientific definition of evolution. The evolutionary theory that scientists have developed changes focuses on the changes that occur in populations over time. These changes are the result of mutations that produce natural selection and genomic variation.<br><br>Charles Darwin was one of the scientists who supported this theory. Alfred Russel Wallace who developed the macroevolution theory believed this was the only way that higher living forms could have evolved.<br><br>For a concept to be considered a theory, it has to be capable of surviving rigorous tests and evidence. Evolution has stood the test of time, and has been supported in countless scientific disciplines from geology to biology, chemistry to astronomy. In fact, evolution is accepted as one of the fundamental tenets of science today, and is supported by the vast majority of scientists around the world. However, there are many misconceptions about the nature of the theory of evolution, and particularly the relationship it has with religion.<br><br>What is the Theory of Evolution (Evolutionary Theory)?<br><br>Evolution is the scientific explanation for the way living things change over time. It relies on a number of well-established and observable facts such as the fact that more offspring are produced than can possibly survive in the long run; that individuals differ from one another in their physical characteristics (phenotype); that different traits have different rates of survival and reproduction and can be passed on to future generations. These findings are supported by the growing body of evidence from molecular biology, palaeontology, functional morphology, climatology and geology.<br><br>The theory of evolution through natural selection was conceived independently by Charles Darwin and Alfred Russel Wallace in the mid-19th century to explain the reason that organisms are adapted to their physical and biological environments. It is today the most supported and most widely tested theory in the field of science. Its predictions were proven by the evidence that for instance, more complex organisms have fewer 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.<br><br>Some people oppose evolution because they believe it implies that there is no meaning to life. However, many scientists who are also religious believers like the famous Cambridge palaeontologist Simon Conway Morris, believe that evolution is not just compatible with faith in God but also enhances it (BioLogos 2014).<br><br>Many highly skilled evolutionary biologists have been involved in developing and testing the theory of evolution, including several highly respected evangelical Christian leaders. Many of them have contributed to the understanding of a wide variety of phenomena like phylogenetics, genomics and  [http://delphi.larsbo.org/user/weaponsummer47 에볼루션 코리아] the formation and role of fossils.<br><br>The term "theory" is sometimes used to refer to an assumption or speculation, when in fact it refers to a scientific idea that has been thoroughly evaluated and  [http://www.e10100.com/home.php?mod=space&uid=2956899 에볼루션 슬롯] refined over time. Scientists test their hypotheses by repeating the experiment or observations that led to them. So the theory of evolution theory has been repeatedly proven, along with 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 change in the proportions of genetically different individuals within a species over time. This change is the result of the natural selection of individuals that are more adapted to their environment. The individuals who are more adapted have higher chances of reproducing and survival. As more of these people survive and reproduce their genes become more common within the population. This is often referred to as "survival of the strongest."<br><br>According to the theory of evolution the mutations that result in genetic variation are the basic basis for evolutionary change. These mutations may occur at random or be affected by the environment. If mutations occur in a random manner and the frequencies of alleles will vary from generation to generation. When a mutation is beneficial it will increase the frequency of alleles, causing the allele to be spread across the population.<br><br>Changes in the frequency of alleles can result in new species over time. The new species will then evolve and develop into newer forms. This process is called macroevolution. The creation of new species is usually caused by changes in the environment, which make certain resources available or creates new environmental problems. The development of finches in the Galapagos Islands, for example is due to the availability of new foods and the need to defend themselves against predators.<br><br>In a larger sense, evolution is defined as any change that takes place in the characteristics of organisms over time. The change could be small like the development of a new coloration or massive, for instance, the creation of a new organ.<br><br>Scientists who accept evolution theory generally agree that genetic change is crucial in the process of generating evolution. They also acknowledge that evolution is a process that happens over time, typically over a period of millions of years. They differ on the importance of different factors that can accelerate or slow down the process. For instance, the role of sexual selection, environmental pressures and mutation bias. Despite these differences scientists believe that evolution has occurred and that the evidence for this is overwhelming.<br><br>What is the Evidence of Evolution?<br><br>Throughout the years since Darwin's time, scientists have collected evidence to support Darwin's theory of evolution. Some of this evidence is derived from fossils which show the changing characteristics of living things over time. Additional evidence can be found in similarities among living organisms embryology, biogeography, genetics and comparative anatomy.<br><br>The evolutionary tree is the most effective method to prove the existence of evolution. It shows how species are closely related. Homologous structures are another proof. They share a common structure but perform different functions in different species, for  [http://lzdsxxb.com/home.php?mod=space&uid=3767815 에볼루션] instance, the wing of a bat or bird. The fact that different species develop and adapt to the same environment is also a sign of evolution. For example, arctic foxes and ptarmigans develop seasonal white pelts to blend into snow and ice. This is a type of convergent evolutionary process, which suggests the species shared ancestors.<br><br>The vestiges of structures are another source of evidence. They are the remains of an organism that could have served a purpose in the past. For instance the human appendix is remnants of an earlier organ that was used to digest food. Natural selection is a process that causes these structures to shrink as they cease to be used.<br><br>Scientists have also collected evidence for evolution by observing and testing. The evidence for evolution can be divided into six categories: directly observed small-scale changes in biogeographic distribution, comparative anatomy, the fossil record, genetics, and classification. Each of these provides convincing evidence that evolution of life has occurred.<br><br>While many people are misinformed about the theory of evolution it is an empirical fact. It isn't just a theory; it is a powerful collection of decades of observations and data that has been tested and proven. No matter what people believe or don't believe about the theory of evolution, scientists continue to study and collect new data to better comprehend the evolution of life on Earth. This information will help scientists to better understand  [https://www.metooo.es/u/67737303acd17a11773eda56 에볼루션 슬롯] how to prevent future catastrophes on the planet, and how best to make use of the resources available on our planet. This information will also help us better serve the needs and desires of the people living on our planet.