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 * Darwin was a naturalist who traveled to England.
 * On his voyage heobserved different plants and animals.
 * He thought up of the theory of evolution by natural selection on this journey as he saw all the animals.
 * The voyage stopped at south america and darwin studied insects and other animals in Brazil.
 * He was curious about the variety of each of the animals he had seen.
 * At argentina, he spotted animal bones that had died a very long time ago. The bones looked like sloth bones he had seen before, but these bones were much larger.
 * He wondered about how the large sloths extinction


 * He also saw huge tortises which were 220 kgs and 2 meters long.
 * Once he went to the galapagos island he noticed that these animals and plants looked similar to the ones from South America.
 * Some animals he saw lived in both places, such as some birds. He noticed that finches differed beaks from every island, each animal probably used differnt beaks for diferent purpose like breaking nuts or killing insects.
 * The beaks are an adaption each finch has grown accustomed to.
 * Evolution is a change species undergo to better survive in their environment.
 * [[image:http://darwin-online.org.uk/graphics/Darwin1881s.jpg width="280" height="435"]]