Article ID: CBB001221609

Darwin's Principles of Divergence and Natural Selection: Why Fodor Was Almost Right (2012)

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Darwin maintained that the principles of natural selection and divergence were the keystones of his theory. He introduced the principle of divergence to explain a fundamental feature of living nature: that organisms cluster into hierarchical groups, so as to be classifiable in the Linnaean taxonomic categories of variety, species, genus, and so on. Darwin's formulation of the principle of divergence, however, induces many perplexities. In his Autobiography, he claimed that he had neglected the problem of divergence in his Essay of 1844 and only solved it in a flash during a carriage ride in the 1850s; yet he does seem to have stated the problem in the Essay and provided the solution. This initial conundrum sets three questions I wish to pursue in this essay: (1) What is the relationship of the principle of divergence to that of natural selection? Is it independent of selection, derivative of selection, or a type of selection, perhaps comparable to sexual selection? (2) What is the advantage of divergence that the principle implies---that is, why is increased divergence beneficial in the struggle for life? And (3) What led Darwin to believe he had discovered the principle only in the 1850s? The resolution of these questions has implications for Darwin's other principle, natural selection, and permits us to readjust the common judgment made about Jerry Fodor's screed against that latter principle.

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Authors & Contributors
Travis, Joseph
Travis, Anthony S.
Ruse, Michael
Richards, Evelleen
Prochiantz, Alain
Nash, Richard
Journals
Journal for General Philosophy of Science
History and Philosophy of the Life Sciences
Studies in History and Philosophy of Science Part C: Studies in History and Philosophy of Biological and Biomedical Sciences
Notes and Records: The Royal Society Journal of the History of Science
Metascience: An International Review Journal for the History, Philosophy and Social Studies of Science
Metabasis
Publishers
University of Cambridge (United Kingdom)
Routledge
Odile Jacob
Harvard University Press
Duke University Press
Belknap Press of Harvard University Press
Concepts
Evolution
Natural selection
Darwinism
Species concept (biology)
Biology
Human evolution
People
Darwin, Charles Robert
Wallace, Alfred Russel
Mayr, Ernst
Dobzhansky, Theodosius
Mueller, Ferdinand, Baron von
Mendel, Gregor Johann
Time Periods
19th century
20th century
20th century, early
18th century
Places
Great Britain
Ukraine
Americas
Germany
Australia
Southeast Asia
Institutions
Johns Hopkins University (Baltimore, Md.)
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