Thanks to his remarkable academic interest, Alfred Russel Wallace was able to meet the naturalist and explorer Henry Walter Bates, with whom he became close friends. During this period the author continued to instruct himself by his own means, frequently visiting the city library. In this institution Wallace imparted his knowledge in the subjects of surveying, drawing and cartography. Later the scientist acquired another job, this time teaching at the Collegiate School, located in the city of Leicester. However, his older brother's business had a sharp decline at that time, so Alfred was forced to leave his job a year later. It is considered that Wallace was a self-taught young man since, despite the difficult financial situation, the author dedicated himself to attending various conferences and immersing himself in the different books that he acquired through the Institute of Mechanics of the city.ĭuring the 1840s and 1843s, Wallace set out to work as a land surveyor in the west of England. Therefore, this means that there was a single origin in common for each and every species in the ecosystem. Both Wallace and Darwin realized that species did not remain static, but instead evolved permanently.įurthermore, these naturalists came to the solution that each group of organisms came from a primary ancestor. This discovery occurred simultaneously with the findings of Charles Darwin that is, both scientists reached the same conclusion during the same period.Īlthough both theories maintained some notable differences, both authors agreed on the fact that organisms on Earth had constantly changed over long periods of time. Biogeographic and ecological contributionsĪlfred Russel Wallace (1823-1913) was a British explorer, biologist and naturalist who proposed the famous theory of evolution carried out by natural selection.Spiritism and the belief in an inexplicable origin.The human being as something more than a species.Differences between the theories of Darwin and Wallace.Video: Alfred Russel Wallace: The Forgotten Father of Evolution Content
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