2-510-691 - © Fine Art Images/Heritage Images

Charles Darwin, British naturalist, c1860s-c1870s. Darwin (1809-1882) started his career on board HMS 'Beagle' and spent six years surveying the South American seas. He is remembered for his momentous contributions to biology and as the originator of the theory of evolution. His most famous work, The Origin of the Species by Means of Natural Selection, was published in 1859. From a private collection.