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Geospiza Finches as a Form of Natural Selection Report (Assessment)

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Updated: May 31st, 2021

Finches may be one of the most widespread bird families worldwide, with each geographical region potentially having its type. The so-called Darwin’s finches of the Galapagos Islands are an excellent example of natural selection, continuing their development even today (www#3). Researching the hybrid offspring of two different Geospiza species may allow delineating some of the existing trends in evolution and speciation, as well as clarifying the views of prominent contributors to evolutionary theory.

The Galapagos Islands are a reputable home for many endemic species. Geospiza finches evolved on the islands as a form of natural selection, with their beaks reflecting their dietary options (www#1). A diversifying trend in natural selection created many different bird types within the same species, increasing the variety of these birds considerably (www#4). As an example, the chosen for study new hybrid excels at procuring new types of food due to its increased size (www#3). Sympatric speciation, which takes place when two species continue their coexistence, is another trend among Geospiza finches, which links with their growing numbers (www#1; www#3). While these birds are exemplary, with Charles Darwin using them to explain his theory of evolution, Jean Baptiste Lamarck may have argued that bigger finches had evolved out of their parents’ application of this quality (www#2). However, the evolution of Geospiza finches remains primarily affected by their differing habitats and considerable numbers.

Persisting as one of the most vivid examples of the theory of evolution, Geospiza Finches is helpful when outlining the implications of diversification and sympatric speciation. Their natural selection through adaptation to the current environment is evident, with each island demonstrating a diverse variety of species, and their overlapping habitats allow speaking about potential sympatry. Thus, Darwin’s theory best explains their process of evolution to which the breeding of favorable characteristics is central.

Works Cited

DeBiasse, Melissa. The Molecular Ecologist. 2015, Web.

DailyHistory. 2018, Web.

Starr, Michelle. ScienceAlert. 2019, Web.

Encyclopedia Britannica, 2019, Web.

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IvyPanda. 2021. "Geospiza Finches as a Form of Natural Selection." May 31, 2021. https://ivypanda.com/essays/geospiza-finches-as-a-form-of-natural-selection/.

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IvyPanda. (2021) 'Geospiza Finches as a Form of Natural Selection'. 31 May.

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