Charles Darwin - Evolution Theory

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Evolutionary Biology

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Charles Darwin - Evolution Theory

Darwin was a British scientist who laid the foundations of the theory of evolution and transformed the way we think about the natural world.Charles Robert Darwin was born on 12 February 1809 in Shrewsbury, Shropshire into a wealthy and well-connected family. His maternal grandfather was china manufacturer Josiah Wedgwood, while his paternal grandfather was Erasmus Darwin, one of the leading intellectuals of 18th century England.Darwin himself initially planned to follow a medical career, and studied at Edinburgh University but later switched to divinity at Cambridge. In 1831, he joined a five year scientific expedition on the survey ship HMS Beagle.At this time, most Europeans believed that the world was created by God in seven days as described in the bible. On the voyage, Darwin read Lyell's 'Principles of Geology' which suggested that the fossils found in rocks were actually evidence of animals that had lived many thousands or millions of years ago. Lyell's argument was reinforced in Darwin's own mind by the rich variety of animal life and the geological features he saw during his voyage. The breakthrough in his ideas came in the Galapagos Islands, 500 miles west of South America. Darwin noticed that each island supported its own form of finch which were closely related but differed in important ways.On his return to England in 1836, Darwin tried to solve the riddles of these observations and the puzzle of how species evolve. Influenced by the ideas of Malthus, he proposed a theory of evolution occurring by the process of natural selection. The animals (or plants) best suited to their environment are more likely to survive and reproduce, passing on the characteristics which helped them survive to their offspring. Gradually, the species changes over time.Darwin worked on his theory for 20 years. After learning that another naturalist, Alfred Russel Wallace, had developed similar ideas, the two made a joint announcement of their discovery in 1858. In 1859 Darwin published 'On the Origin of Species by Means of Natural Selection'.The book was extremely controversial, because the logical extension of Darwin's theory was that homo sapiens was simply another form of animal. It made it seem possible that even people might just have evolved - quite possibly from apes - and destroyed the prevailing orthodoxy on how the world was created. Darwin was vehemently attacked, particularly by the Church. However, his ideas soon gained currency and have become the new orthodoxy.Darwin died on 19 April 1882 and was buried in Westminster Abbey.


1809 - Born1831- Takes a sea voyage.1836 - Returns and publish his theories1837- First theories on specie mutations1859 - Natural Selection book is published1882 - Died

1. Provided scientific evidence that all species of life have evolved over time from one or a few common ancestors via natural selection. 2. His book "On the Origin of Species" established evolution by common descent as the dominant scientific explanation of diversification in nature. 3. He examined human evolution and sexual selection in his books entitled "The Descent of Man" and "Selection in Relation to Sex". 4. On his 5 year Beagle survey, he noted a rich variety of geological features, fossils and living organisms, and methodically collected an enormous number of specimens, many of them new to science. 5. His studies as a geologist solved the puzzle of the formation of coral atolls.

Lasting Impact

He makes us know the real origins that we have.




What is the theory of evolution?


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