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The Evolution Site The theory of evolution through natural selection is the unifying force of modern biology. It connects disciplines like microbiology, palaeontology, genetics and palaeontology. The study of evolution may be controversial and the misinformation that results can cause confusion about the fundamentals of evolution. This site clarifies essential concepts. What is Evolution? Modern evolutionary theory focuses on the gradual and cumulative changes that occur in populations over time. These changes are the result of natural selection, a process that increases the amount of organisms that possess beneficial traits that allow them to survive and reproduce in a particular environment. In turn, these organisms have more offspring than those that don't have these beneficial characteristics. This leads to an alteration in genetics that could eventually lead to the creation of new species. The term “evolution” is frequently associated with the idea of “survival of the fittest” which implies that individuals who are best adapted to a specific environment will be more successful than those who aren't well-adapted. In actuality, this is only one of the many different ways that evolution can occur. Another way of using the term “evolution” is to suggest that a species are able to move from one stage to the next. This theory of evolution is called anagenetic or cladogenesis. This view is not supported by the definition of evolution that is scientifically accepted. Instead, the theory of evolution that is scientifically based concentrates on the changes that happen in populations over time and these changes are the result of mutations that produce genomic variation and natural selection. Charles Darwin was one of the scientists who supported this theory. Others, including Alfred Russel Wallace, who came up with the macroevolution theory and believed that this was the only way that the higher forms of life could have evolved from the lower ones. A theory must stand against rigorous tests and evidence to be considered a theory. The evidence for evolution has stood the test of time and has been supported by countless studies in many sciences, from geology to biology to astronomy. Evolution is the foundation of science and is supported by a majority of scientists around the globe. Many people are misinformed about the nature of the theory of evolution and how it connects with religion. What is the Theory of Evolution (Evolutionary Theory)? Evolution is an explanation for how living things change with time. It is based on a variety of well-established observable facts that show that more offspring are often produced than can possibly survive; that individuals differ from each other in their physical characteristics (phenotype) and that various traits have different rates of reproduction and survival; and that traits can be passed on to future generations. These observations are supported by the growing body of evidence from molecular biology, palaeontology climatology, functional morphology and geology. Charles Darwin and Alfred Russel Wallace independently conceived the theory of evolution based on selection in the middle of the 19th century as an explanation why organisms adapt to their biological and physical environments. It is the most widely accepted and tested theory in the field of science. Its predictions were confirmed by the fact that, for instance, more complex organisms have fewer genetic mutations. In 에볼루션 바카라 사이트 is at surviving and reproducing, the more likely it is to pass on its genes to the next generation. Some people object to evolution because they believe it implies that there is no meaning to life. However, many scientists who are also religious, such as the prominent Cambridge palaeontologist Simon Conway Morris, believe that evolution isn't just compatible with faith in God but can be enhanced by it (BioLogos 2014). Many highly qualified evolutionary biologists have been involved in the development and testing the theory of evolution, which includes some respected evangelical Christian leaders. Many of these researchers contributed to the understanding a vast array of phenomena, such as phylogenetics and genomics, and also the formation and function fossils. The word “theory” that is often used incorrectly, refers to a scientific hypotheses that have been tested and refined over time. Scientists test their hypotheses by repeating experiments or observations that have led to them. So the theory of evolution theory has been repeatedly confirmed along with the related 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 shift over time in the proportion of genetically distinct individuals within a certain species. This change is a result of natural selection of those who are better adapted to their environment. The individuals who are more adaptable have a better chance of survival and reproduction. As more people survive and reproduce, their genes are more widely distributed in the general population. This process is sometimes referred to as “survival for the fittest.” According to the theory of evolution, the mutations that produce genomic variation are the raw basis for evolutionary change. These mutations could occur randomly or under the influence of the environment. When mutations occur randomly, the allele frequencies will vary from generation to generation. When the mutation is beneficial it will increase the frequency of the allele, which causes it to spread across the population. Changes in the frequency of alleles can result in new species as time passes. The new species can then continue to evolve and become newer forms. This process is known as macroevolution. The development of new species is typically a result of changes in the environment, which makes certain resources available or creates new environmental problems. The evolution of finches in Galapagos Islands, for example is due to the availability of new food and the necessity to defend themselves from predators. In a wider context the term “evolution” refers to any change that occurs in the characteristics of living organisms over time. The change could be subtle, like the development of new colors or a dramatic change, such as the formation of an organ. Scientists who believe in the theory of evolution generally agree on the importance of genetic change in generating evolution. They also believe that evolution is a process that happens in time, typically over millions of years. They differ in the importance of various factors that could speed up or slow down this process. For instance the role played by sexual selection, environmental pressures and mutation bias. Despite these differences most scientists still believe that evolution is real and that the evidence to prove it is overwhelming. What evidence do we have to support evolution? In the decades since Darwin's time, scientists have collected evidence to support Darwin's theory of evolution. This evidence is gathered from fossils that show the evolution of living organisms over time. Additional evidence can be found in the similarities between living organisms embryology, biogeography, genetics and comparative anatomy. The primary evidence of evolution is in the evolutionary tree, which demonstrates how different species are related. Homologous structures are another proof. They share a common structure, but they perform different functions in different species, for instance, the wing of a bird or bat. The fact that different species evolve and adapt to a similar environment is another sign of evolution. For instance, arctic foxes and ptarmigans develop white fur coats that blend into snow and ice. This is a form of convergent evolutionary process, which suggests that the species share common ancestors. Another evidence point is the existence of vestigial structures. These are unusable organs that could have served a purpose in the distant ancestor. The human appendix, for instance is an odour from an organ that was used to digest food. Natural selection is a process that causes these structures to shrink as they are no longer used. Scientists have also collected evidence for evolution by observing and testing. The evidence for evolution can be grouped into six distinct categories: directly observable changes at a smaller scale, biogeographic distributions, comparative anatomy fossil records and genetics. Each of these provides compelling evidence that evolution of life has occurred. Although many people have misconceptions about the theory of evolution, it is a scientific fact. It is not a speculative theory, but a significant collection that is built on years of observation. Scientists continue to gather and analyze new data to better understand the evolution of the Earth's life regardless of whether or not people believe in the theory of evolution or not. This information will help scientists to better understand how to avoid future global catastrophes, and how best to make use of the resources of our planet. This information will also help us better serve the needs and desires of all the people living on this planet.