Darwin's finches

Leavens, David (2006) Darwin's finches. p. 20. ISSN 0028-6664

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In his article on scientific myths, Henry Nicholls rejects the widespread belief that the study of the Galapagos finches had any significant bearing on Darwin's development of the theory of natural selection, stating that "the words 'Darwin' and 'finches' [first] appeared alongside each other in print...in 1935" (15 July, p 21). The late juxtaposition of the terms "Darwin" and "finches" may be accurate, but this does not tell us whether the diversity in beak sizes and shapes among Galapagos finches may have influenced Darwin's thinking about the origin of species. In his account, The Voyage of the Beagle (second edition, published 1845), Darwin devoted a figure to depicting this bill diversity in four species of ground finch found in the Galapagos archipelago: Geospiza magnirostris, Geospiza fortis, Geospiza parvula and Certhidea olivasea. He commented: "Seeing this gradation and diversity of structure in one small, intimately related group of birds, one might really fancy that from an original paucity of birds in this archipelago, one species had been taken and modified for different ends." It is true, as Nicholls states, that Darwin "made almost no mention of these iconic birds in his voluminous writings", but the mention he does make is astonishingly prescient, concisely forecasting the idea of the mutability of species elaborated on in On the Origin of Species, published subsequently, in 1859.

Item Type: Article
Additional Information: Letter to the Editor, Issue 2563
Schools and Departments: School of Psychology > Psychology
Depositing User: David Leavens
Date Deposited: 06 Feb 2012 15:39
Last Modified: 04 Jun 2013 11:26
URI: http://srodev.sussex.ac.uk/id/eprint/13766
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