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Portrait of Charles Robert Darwin (1809-1882) English naturalist and author of the Origin of Species aged about 65 years. He suggested that natural variation in a species creates a wide range of individual characteristics, some of which are more useful than others. The competition to survive in nature provides a driving force for evolution in the form of natural selection, a mechanism which weeds out those individuals possessing traits less suitable to the environment. The implications of his theory to man's own origins fuelled a bitter controversy with Christian orthodoxy. Black and white photograph 1874: coloured in 1995.
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