Wednesday, February 20, 2019
Darwinââ¬â¢s Theory of Evolution & Natural Selection Essay
Charles Robert Darwin was born on 12 February 1809 in Shrewsbury, Shropshire into a monied family. Darwin himself initially planned to follow a medical career, and studied at Edinburgh University but after switched to divinity at Cambridge. In 1831, he coupled a five year scientific expedition on the descry ship HMS Beagle. This is where he came up with his theory of organic phylogeny. During his voyage on the Beagle, Darwin run aground evidence that challenged traditional belief that species are unchanging. During this, he read Charles Lyells book Principles of Geology. As Darwin began visiting many places, he began to see things that he thought could be explained only by a process of dawdling change. He realized the plants and animals on the Galapagos Islands resembled those in South America. He later suggested that the animals migrated to the Islands from South America and changed after they arrived. He later called this change evolution. When he returned from his voyage he continued his studies, but did not report his ideas of evolution until many years later.The key to Darwins thinking about how evolution takes place was an essay written in 1798 by Thomas Malthus. Malthus suggested that homophile populations do not grow unchecked because death caused by disease, war, and deficit slows population growth. Darwin realized that his hypothesis can apply to all species. Considering Malthuss view and his own observations and experience in breeding domestic animals, Darwin do a key association. A process in nature in which organisms possessing certain genotypic characteristics that make them better adjusted to an environment be given to survive, reproduce, increase in number or frequency, and therefore, are able to transport and perpetuate their essential genotypic qualities to succeeding generations.He call this vivid selection. In 1844, Darwin finally wrote down all these ideas about evolution and natural selection in and early outline that he showe d to few scientists. He decided to publish it after being contacted by Alfred Russel Wallace. His book On the Origin of Species by Means of Natural Selection appeared in November of 1859. Darwins theory of evolution and natural selection were based on quadruple major points. 1) Inherited variation exists within the genes of every population or species. 2) In a particular environment, some individuals are better fit to survive and have more offspring.
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