He released and presented evidanvce that all species of life have evolved over time from common ancestors through the process, he called, "Natural Selection". This was accepted by scientists community in his lifetime. From 1930 to 1950, a broad concensus developed that natural selection was the basic mechanism of evolution. In modified form, Darwin's scientific theory is the unifying theory of the life sciences, explaining the diversity of life.
At Edinberg University, Darwin neglected medical studies and helped to investigate marine invertibrates, then the University of Cambridge encouraged a passion of natural sciences.
Darwin also investigated the transmutation of species and conceived his "Theory of natural selection" in 1938. His book "On the Origin of Species" established evolutionary descent with modification as the dominant scientific explanation of diversification in nature.
He examined human evolution and sexual selection in "The Descent of Man, And Selection in Ratio to Sex", followed by "The Expression of the Emotions in Man and Animals". His research on plants was published in a series of books, and in his final book, he examined earthworms, and their effect on soil.
He was died on 19 April 1882 (aged 73).In recognition of Darwin's pre-eminence, he was only five 19th century non-royal personages to be honoured by a state funeral, and was buried Westminster Abbey, close to John Herschel and Isaac Newton.
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