Charles Darwin (Galápagos Finches): Group/Species Of Birds

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Darwin’s finches (also known as Galápagos finches) are a group/species of birds from the Galápagos (13 species) and Cocos (1 species) Islands in the Pacific Ocean. Charles Darwin collected these birds on the second voyage on the Beagle in 1831. It is often stated that the finches were the key to the development of his theory of evolution and Natural Selection. They are used as evidence in many of Darwin’s textbooks. The finches Darwin collected included three species of seed-eating ground finches with large, medium, and small beaks; another ground finch with a pointed beak; two species of ground finches that fed on cactus; a vegetarian tree finch; three species of insectivorous tree finches; a mangrove finch; a finch that closely resembles …show more content…
Charles Darwin collected these birds on the second voyage on the Beagle in 1831. It is often stated that the finches were the key to the development of his theory of evolution and Natural Selection. Darwin noticed that even in such a small area such as the Galápagos islands, that the finches had different beak sizes on every island. He then came up with the theory of Natural Selection which is the the process by which species adapt to their environment. He claimed that the finches had different beak shapes and sizes because they were evolving to the needs of their environment and/or for their own survival. His discovery of the Galápagos finches was the start of the theory of evolution and without his discovery, we might not have had as an advanced knowledge of evolution and Natural Selection. Although the Galapagos finches were not as important to Darwin 's theory of evolution as is often claimed, but they are a good example of Natural Selection and microevolution. They show us that finches can vary in shapes and sizes, and that Natural Selection has a key role in this. However, this study does not give evidence for macroevolution, and does not prove that the Natural Selection of the finches could produce a completely new organism and species of

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