Essay Question: Why did Charles Darwin believe that the finches he observed and collected in the Galapagos Islands shared a common ancestor?

English naturalist, Charles Darwin, believed the finches he collected and observed on the Galapagos Islands share a common ancestor because he found they all told greatly resembled a bird located on the Ecuadorian brink off confederation America. When Darwin initially began his journey on the Beagle, he was biased toward the widely accepted idea that all(prenominal) spiritedness thing on Earth was a comprehend creation, which remained fixed and existing as it was originally created. However, when Darwin arrived on the Galapagos Island he began to touch a flaw in this theory. Examining and collecting the islands bodily existence closely and carefully he began to see preternatural similarities between the animals upon the island and the animals on the South America mainland. For example, Darwin discovered that the fossils of nonextant armadillos and the before foresightful living armadillo population on the island had more of the same features, though the current p opulation of armadillos had certain typical that helped it survive in the islands environment. Using this, the finches and other animal specimens, he was struck by the idea that this animals must have migrated long ago from South America to the island, giving rise to a new and well-heeled animal population.

        Darwin was also able to adjudicate the finches shared a common ancestor from the written works of Charles Lyell and Thomas Malthus. tour sailing on the Beagle toward the island, he was able to read and read Charles Lyells Princeples of Geology which, discussed in great detail, the Jea n Batispe Lamarck theory of evolution. He b! elieved animal structures evolved over time ascribable to ordinary use or disuse, and was eventually passed through to their offspring. For example he proposed the lengthing of the giraffes neck was due in part to the trees it lived among. In swan for it to obtain... If you want to run short a full essay, couch it on our website: BestEssayCheap.com

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