Darwin was a British scientist who thought about the idea of evolution and transformed the way in which we see the natural world. He was a very controversial figure as he went against the norms of believing that God created the world in 7 days and instead challenged this view by saying that many researcher, writers and scientists before him had made discoveries that suggested that all animals and living organisms had evolved from animals and living organisms before them. He looked at natural selection which he said was when the animal or plant that survives in an environment is one which is best suited for that specific environment and if it can't survive then the species will simply die out - particulary in that area.