A Comparison Of Andrew Knight, Jean-Baptiste Lamarck, And Charles Darwin

During the early 1800’s much speculation occurred within the scientific community as to how life came to be, at this time scientists such as Andrew Knight, Jean-Baptiste Lamarck, and Charles Darwin all had their own ideas concerning the diversity of life on earth. A few theories were based upon the thought that variation had been attributed to the amount of food that had been available to an organism; this is what Andrew Knight had originally thought. Jean-Baptiste Lamarck had a different idea that environmental factors are the best explanation for the development of species, which as we’ll find is partially correct. Charles Darwin, the author of The Origin of Species did not fully refute these theories, especially Lamarck’s, as they were a key element in explaining his ideas and thoughts, which at the time was also quite …show more content…
Darwin states that domestic species contain additional variety in their different subsets and races than species that are found in the wild (in nature). At the time it was believed that this variation had occurred from differences in climate and food, Darwin believed that these variables causing alterations in species were not the predominant cause for the variation within a species. He believed that the reason as to why the domesticated species contained additional variation was the result of the domesticated species were being raised under different life conditions from that of its parents, which had lived in nature (the wild). Domesticated species were being selectively bred for their favorable traits. This is known as selective breeding. Selective breeding had been and is currently abundant in farming, as the fittest animals were selected and bred, this created a larger stock of the further useful domesticated animals and were continuously bred for that specific trait. This was known as conscious selection; however, varying traits in domesticated species were also unconsciously selected. This meant that certain traits or

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