The Theory Of Natural Selection

Darwin saw commonalities among species with differences dependent on specific places while exposed to life all across the world throughout the voyage. He read English economist Thomas Malthus' Essay on the Principle of Population in September 1838. Malthus claimed that while food output develops arithmetically, the population expands geometrically. He also discussed how some members of society were able to live under challenging circumstances. Darwin understood that rising populations would result in competition for resources and the eradication of the unfit. A process by which species choose advantageous features in their struggle for existence, he adapted the concept to nature and named his modified Malthusian mechanism "natural selection."

He developed his career as a geologist and writer while also developing his idea that natural selection is the driving force behind evolution in September 1838. He worked in solitude to gather evidence and address potential objections. He first expressed his thoughts in a "pencil sketch" in 1842, followed by an essay in 1844.

Darwin needed time for additional investigation even though he came up with the theory of natural selection in 1838. He was also kept busy with his geological work. British naturalist Alfred Russel Wallace gave Charles Darwin an essay describing the concept of natural selection in 1858, as Darwin was developing his theory. As a result, on July 1, 1858, they jointly presented their scholarly articles, On the Tendency of Species to Form Varieties and on the Perpetuation of Varieties and Species by Natural Means of Selection, to the Linnean Society of London. The Darwin - Wallace hypothesis of evolution by natural selection, the cornerstone of contemporary evolutionary studies, was initially presented in this publication.