Charles Darwin and Alfred Russel Wallace independently developed the idea of evolution by natural selection in the mid-nineteenth century.
Charles Darwin and Alfred Russel Wallace independently developed the idea of evolution by natural selection in the mid-nineteenth century. They both spent time exploring the natural world on expeditions to the tropics, with Darwin traveling around the world on H.M.S. Beagle and Wallace conducting expeditions in Brazil and the Malay Archipelago.
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