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The Evolution Site

The theory of evolution through natural selection is the unifying force of modern biology. It ties together disciplines such as genetics, microbiology, and Palaeontology.

The study of evolution may be controversial, and the misinformation that results can lead to confusion over its basic concepts. This site clarifies the most fundamental concepts.

What is Evolution?

The modern understanding of evolution focuses on the gradual, cumulative changes that occur within populations over time. These changes are the result of natural selection. This is a process which increases the number organisms with beneficial traits, which allow them to survive and reproduce in specific environments. This means that these organisms leave more offspring than those who don't have these beneficial characteristics. This causes a genetic change that can eventually lead to the creation of new species.

The term "evolution" is often associated with the notion of "survival of the fittest," which implies that people who are the most adapted to a specific environment will be more successful than those who aren't well-adapted. In actuality, this is only one of many ways that evolution could occur.

Another popular way in which the term "evolution" is used to suggest that a species will inevitably change from one state to the next state of being. This type of view of evolution could be described as anagenetic, or cladogenesis. The definition of evolution that scientists have developed does not support this view. The theory of evolution that is based on science change focuses instead on the changes that occur in populations over time. These changes are the result of mutations which result in natural selection and genomic variation.

Some scientists, such as the great Charles Darwin, advocated this theory of evolution. Alfred Russel Wallace who developed the macroevolution theory believed this was only way the higher forms of living could have evolved.

For a concept to be considered a theory, it has to be capable of standing up to rigorous testing and evidence. The evidence of evolution has withstood the test of time and has been supported by countless studies in a wide range of scientific disciplines, from biology to geology, chemistry to astronomy. Evolution is a cornerstone of science and is backed by a majority of scientists across the world. However, many people have misconceptions about the theory of evolution, particularly how it is related to religion.

What is the Theory of Evolution (Evolutionary Theory)?

Evolution is an explanation in science of how living things change over time. It is based on a range of well-established and observable facts that show that more offspring are often created than are likely to survive; that individuals differ from one another in their physical characteristics (phenotype) and that various characteristics result in different rates of reproduction and survival and can be passed on to future generations. These findings are backed by a growing body of evidence drawn from molecular biology, palaeontology and climatology functional morphology geology.

Charles Darwin and Alfred Russel Wallace independently conceived the theory of evolution through selection in the mid-19th Century as an explanation why organisms adapt to their biological and physical environments. It is the most widely accepted and tested theory in science. Its predictions were proven by the evidence that, for instance, more complex organisms have fewer genetic mutations. In addition, the more successful an organism is at surviving and reproducing in its ability to reproduce, the more likely it will be to pass its genes to future generations.

Some people object to evolution based on the belief that it implies that there is no purpose 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 belief in God but can be enhanced by it (BioLogos 2014).

hop over to here have been involved in developing and testing the theory of evolution, which includes some respected evangelical Christian leaders. Many of them have contributed to the understanding of a wide variety of phenomena such as phylogenetics, genomics, and the development and role of fossils.

The term "theory" is sometimes used in a wrong sense to mean a speculation or guess however it actually refers to a scientific hypothesis that has been thoroughly tested and refined over time. Scientists test their theories by repeating experiments or observations that led to them. Thus the theory of evolution theory has been repeatedly confirmed as well as the related theories of Copernican theory, 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 is the result of natural selection, which favors individuals who are better adapted to their environment. The more adapted individuals have better chances of reproduction and survival. As more individuals survive and reproduce their genes become more prevalent in the population. This process is sometimes referred to as "survival for the fittest."

According to theories of evolution the causes of mutations that result in genetic variation are the primary reason for evolution. These mutations may occur at random, or under the influence of the environment. When mutations are random, the frequencies of the resulting alleles may differ from generation to generation. When the mutation is beneficial it increases the frequency of the allele, causing it to spread throughout the population.

The changes in frequency of alleles can result in new species over time. The new species will then evolve and develop into newer forms. This is known as macroevolution. The creation of new species is often a result of changes in the environment, which makes certain resources available or creates new environmental challenges. The evolution of finches in the Galapagos Islands, for example, is due to the availability of new foods and the need to defend themselves against predators.

In a larger sense the term "evolution" can be described as any change in the characteristics of living organisms over time. The change could be subtle, like the development of new coloration or a dramatic change, such as the development of an organ.

Scientists who accept the theory of evolution generally agree on the importance of genetic changes in the process of generating evolution. They also agree that evolution is a process that occurs over time, usually over millions of years. However, they differ on the role of various factors in accelerating or retarding the process, including the influence of environmental pressures sexual selection and mutation bias. Despite these differences, most scientists believe that evolution has happened and that evidence for this is overwhelming.

What is the Evidence of Evolution?

In the decades since Darwin's time, scientists have gathered evidence that supports his theory of evolution. Some of this evidence is derived from fossils which show the changing characteristics of organisms through time. Another evidence comes from similarities among living organisms embryology, biogeography, genetics and comparative anatomy.

The evolutionary tree is the most effective way to prove evolution. It demonstrates how species are closely related. Another way to prove it is homologous structures, which have similar structure 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 kind of convergent evolution that suggests that the species has common ancestors.


Vestigial structures are a different piece of evidence. These are parts of an organism that may serve a function in the distant past. The human appendix, for instance, is a vestige from an organ that once used to digest food. Natural selection is a process that causes the structures to shrink when they are no longer used.

Scientists have also collected evidence for evolution through observation and experimenting. The evidence for evolution can be divided into six distinct categories: directly observed changes at a smaller scale, biogeographic distributions, comparative anatomy, the fossil record and genetics. Each of these provides compelling evidence that the evolution of life has taken place.

While many people are misinformed about the theory of evolution it is a scientific fact. It isn't simply a flimsy theory. It is a powerful collection of years of observation and accumulated data that has been tested and proven. No matter what people believe or disbelieve about the theory of evolution scientists continue to research and gather new information to better understand the history of life on Earth. This information will help scientists understand how to prevent future catastrophes on the planet and how to best use the resources of our planet. This information will also help us better serve the needs and desires of the people who live on this planet.

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