Darwin and Wallace
Alfred Russel Wallace was a great admirer of Darwin and a fellow naturalist. Working independently of Darwin, he also developed a theory of evolution by natural selection.
Having travelled the world gathering evidence, Wallace is best known for studying warning colouration in animals, including the Golden Birdwing Butterfly (Ornithoptera croesus) and his theory of The formation of new and distinct species in the course of evolution..
When Wallace proposed his theory of evolution, Darwin was encouraged to gather his own unpublished material together, on which he had been working in secret for 20 years. In 1858, the two men presented papers on their theories to the Linnean Society, and the following year Darwin published his masterwork, On the Origin of Speices
