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Describe in detail the main ideas behind Darwin's theory of evolution by natural selection and describe in detail three pieces of evidence that support this theory By Bakor Al-tayar Darwin's theory of evolution is the idea that all species of living things are connected as they all have a common ancestor. The general theory stresses a undirected "decent with modification". In other words more complex creatures naturally evolve from simpler ancestors over time. The main mechanism of this evolution is the mutations. These are random and most of the time they are not beneficial, but when they are beneficial (by aiding survival) they are preserved by natural selection and are passed on to offspring. Over time these beneficial mutations accumulate and can result in making a new species. The idea of evolution existed well before Darwin, the Greek philosopher Anazimander proposed the idea of evolution, Darwin added the idea of natural selection,...

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