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The Evolution Site The concept of natural selection as the foundation of evolution is the unifying force in modern biology. It combines disciplines like genetics, palaeontology and microbiology. The study of evolution may be controversial and the misinformation that is generated can cause confusion about its basic concepts. This site explains the fundamental concepts. What is Evolution? Modern evolutionary theory focuses on the gradual and cumulative changes that happen in populations over time. These changes are caused by natural selection, a process that increases the number of organisms who have beneficial traits that enable them to live and reproduce in a specific environment. The organisms that have these traits produce more offspring because of their positive characteristics. This could cause a genetic change which could eventually lead to the creation of new species. The term “evolution” is usually associated with “survival-of-the fittest” which implies that people who are better adaptable to specific environmental conditions will have a distinct advantage over those who are less well adapted. This is just one of many ways that evolution can happen. Another popular way in which the word evolution is used to suggest that a species will invariably change from one state to the next one. This type of view of evolution could be referred to as anagenetic, or cladogenesis. The scientific definition of evolution does not support this idea. The scientific theory of evolutionary changes focuses on the changes that occur in populations over time. These changes are caused by mutations which result in natural selection and genomic variation. Charles Darwin was one of the scientists who backed this idea. Others, notably Alfred Russel Wallace, who developed the theory of macroevolution believed that this was the only way that the higher forms of life could be derived from lower forms. In order for a concept to be called a theory, it has to be capable of surviving rigorous testing and evidence. Evolution has stood the test of time, and has been backed by numerous scientific disciplines ranging from geology to biology from astronomy to chemistry. Evolution is the foundation of science and is believed by a majority of scientists around the globe. However, there are many misconceptions about the nature of the theory of evolution, particularly the relationship it has with religion. What is the Theory of Evolution (Evolutionary Theory)? Evolution is the scientific explanation of the way living things change over time. It relies on a number of well-established observable facts: that more offspring are produced than can possibly survive in the long run; that individuals differ from one another in their physical characteristics (phenotype) and that various traits confer varying rates of survival and reproduction and can be passed on to the next generation. These observations are backed by the growing body of evidence from molecular biology, palaeontology, functional morphology, climatology, and geology. The theory of evolution by natural selection was developed independently by Charles Darwin and Alfred Russel Wallace in the mid-19th century to provide an explanation for why organisms are adapted to their physical and biological environments. It is the most widely supported and tested theory in the field of science. Its predictions were proven by the evidence, for example that more complex organisms have fewer genetic mutations. The more successful an organism is in terms of survival and reproducing, the more likely it is to transfer its genes to future generations. Some people are against evolution because they believe it implies there is no purpose to life. Many scientists who are religious such as the Cambridge Palaeontologist Simon Conway Morris (BioLogos, 2014) believe that evolution is compatible with faith in God and even enhanced by it. In actual fact, a significant number of highly qualified evolutionary biologists, including a few who are renowned evangelical Christian leaders are involved in the development and testing of the theory of evolution. Many of them have contributed to the understanding of a broad variety of phenomena, including phylogenetics and genomics, and the formation and function of fossils. The word “theory” is often used incorrectly to mean a speculation or guess however it actually refers to a scientific idea that has been rigorously tested and refined over time. Scientists test their hypotheses by repeating experiments or observations that have led to them. Thus, the theory of evolution has been repeatedly tested out, as have the related theories of Copernican, germ and atomic theory. What is the Process of Evolution? The process of evolution is a gradual change in the genetic makeup of different individuals within a species over time. This change is a result of natural selection of those who are more well-adapted to their environment. The individuals who are more adapted have higher chances of reproduction and survival. As more of these individuals survive and reproduce, their genes are more prevalent within the population. This is sometimes described as “survival of the fittest.” According to the theory of evolution the mutations that result in genomic variation are the primary material of evolutionary change. These mutations can occur at random or under the influence of the environment. If mutations occur in a random manner and occur in a random manner, the frequency of the allele may vary from generation to generation. When a mutation is beneficial it can increase the frequency of the allele, causing the allele to be spread across the population. The changes in frequency of alleles can lead to new species as time passes. The new species can then continue to evolve and become newer forms. This is a process called macroevolution. 에볼루션 카지노 사이트 of a new species is often due to changes in the environment that make certain kinds of resources available or cause new environmental problems. For example, the evolution of finches in the Galapagos Islands is a result of the availability of various food sources and the need defend themselves from predators. In a wider sense, evolution can be defined as any change in the characteristics of living organisms over time. The change could be small like the development of a new coloration or even massive, like the formation of a new organ. Scientists who accept the theory of evolution generally agree on the importance of genetic change in generating evolution. They also believe that evolution is a process that occurs in time, typically over millions of years. They differ in the importance of various factors that can accelerate or slow down the process. For instance the role played by sexual selection, environmental pressures 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 evidence can be found for evolution? Since Darwin's time scientists have gathered evidence to support his theory of evolution. Some of this evidence comes from fossils which reveal the changing traits of living things over time. Similarities between living and non-living organisms as well as embryology, biogeography and genetics are evidence. The evolutionary tree is the best method of proving evolution. It shows how species are related. Another way to prove it is homologous structures, which have a similar structures in different species but perform distinct functions like the wings of birds and bats. Evolution is evident in that different species adapt and develop to similar environments. For instance, arctic-foxes and Ptarmigans wear white seasonal pelts that blend into the snow and ice. This is a type of convergent evolution, which suggests that the species has common ancestral ancestors. Vestigial structures are a different piece of evidence. They are the remains of an organism which may have served a purpose in the past. The human appendix for instance is an odour from an organ that once used to digest food. These structures tend to shrink in size as they are no longer used, a process known as natural selection. Scientists have also collected evidence of evolution through observation and experimenting. The evidence for evolution is divided into six categories: directly observable small-scale changes in biogeographic distribution and comparative anatomy, the fossil record, genetics, and classification. Each of these categories offers solid evidence for the evolution of life. While many people are misinformed about the theory of evolution It is a scientific fact. It is not a theory but a powerful collection that is built on decades of observation. Whatever people believe or deny about the theory of evolution scientists continue to research and discover new information to better understand the history of life on Earth. This knowledge will allow scientists to better understand how we can avoid 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 all the people living on our planet.